Cholecalciferol and Dizziness: What Users Say

• Ver...
• Taken for 1 to 6 months
• January 22, 2021

Cholecalciferol for Vitamin D Deficiency "I struggle badly with Vitamin D supplements. Don't ever let a doctor tell you it's not the supplement! The only thing I do like about it is for me it's almost like a sleeping pill. I pass out very quickly after taking it every time. However, the next day I always feel tense, dizzy, short of breath, headaches, muscle aches, anxiety, stomach pains, constipation, and have acid reflux issues. This ALWAYS goes away when I stop the supplement. I've tried adding magnesium and it doesn't help."

• Mag...
• October 19, 2016

Cholecalciferol for Vitamin D Deficiency "After my wellness checkup and blood analysis, I was told by my MD to start taking Vitamin D3-2000 daily. I took it as recommended for 2 days and I noticed that I was experiencing dizziness, tiredness, and really bad cramps in my hands, feet, and legs. I thought that I was dehydrated and drank more water. The cramps kept getting worse, and I also started having increased palpitations and more dizziness. As the only change I had made in my daily regimen was taking the D3, I decided to stop taking it to see if it might be the cause. Sure enough, these symptoms disappeared. So, why are we being told to take this? Several of my friends and family have been advised to do the same lately. Is it a new 'health' sham?"

• Lee...
• September 7, 2019

Cholecalciferol for Vitamin D Deficiency "So my doc prescribed me 10000 IU for 6 weeks, since I was vitamin D deficient. After 2 weeks of taking these, I noticed terrible heart palpitations and a fast heartbeat. I went to the ER with a heart rate of 172, the scariest day of my life. Vitamin D makes me so drowsy and dizzy. I'm definitely not taking this anymore. It helped me with my levels, now it is 36, but it's making me feel miserable."

• Ano...
• May 3, 2019

For Vitamin D Deficiency "I was feeling fine until I was diagnosed with vitamin D deficiency (4.6). I took 8000 IU of vitamin D3 once a week for a month. The first time I took it after 3 hours I felt sick all of a sudden, with terrible palpitations, extreme dizziness, nausea, and confusion. I thought I was dying! My doctor said it was impossible vitamin D caused this, so he told me to keep taking the drug. The second week I ended up in the ER, but everything was negative, and they told me it couldn't be vitamin D. I took it 4 times, once a week, until I asked my pharmacist about my symptoms, and he told me to stop immediately. During that month I had constipation, loss of appetite, extreme weight loss, dizziness, fatigue, muscle pain, anxiety, depression, high blood pressure, and scary palpitation episodes (10 times), all symptoms I never had before. Now it's been a month since I've stopped taking vitamin D, and my health is slowly improving. Now my vitamin D level is 16, so I guess the drug worked, but I would never take it again with all those side effects."

• Anonymous
• Taken for less than 1 month
• August 29, 2021

Cholecalciferol for Vitamin D Deficiency "I had low vitamin D. My doctor put me on 50,000 IU/week. After the first dose, I have been to the ER twice. Dizzy, lightheaded, real high, anxiety, massive headaches, twitchy, coordination loss, high heart rate, photo and audio oversensitivity, mental confusion, spinning, eye pressure, 'pre-dreaming,' just shutting my eyes. I have to avoid light, sounds, movement. I make myself eat 'cause nausea and weight loss. Doctors dismiss it, but I have read about serotonin and other levels being too high. I regret taking this and currently waiting for my body to be deficient again just so I can feel OK. First 15 hours bad. Doctor said 2-3 days, but it's been my 6th day. Read after 15 days, vitamin D is down to 50%. 25% by 30 days. I avoid light, any vitamin D foods, anything to cause serotonin levels to go up. I was better off in my level mental state. Hope this may help calm you if you are having effects."

• Anonymous
• Taken for less than 1 month
• August 29, 2021

Cholecalciferol for Vitamin D Deficiency "I had low vitamin D. My doctor put me on 50,000 IU/week. After the first dose, I have been to the ER twice. Dizzy, lightheaded, real high, anxiety, massive headaches, twitchy, coordination loss, high heart rate, photo and audio oversensitivity, mental confusion, spinning, eye pressure, 'pre-dreaming,' just shutting my eyes. I have to avoid light, sounds, movement. I make myself eat 'cause nausea and weight loss. Doctors dismiss it, but I have read about serotonin and other levels being too high. I regret taking this and currently waiting for my body to be deficient again just so I can feel OK. First 15 hours bad. Doctor said 2-3 days, but it's been my 6th day. Read after 15 days, vitamin D is down to 50%. 25% by 30 days. I avoid light, any vitamin D foods, anything to cause serotonin levels to go up. I was better off in my level mental state. Hope this may help calm you if you are having effects."

• Anonymous
• Taken for 6 months to 1 year
• February 4, 2025

Cholecalciferol for Vitamin D Deficiency "I reluctantly had to go to the doctors in October last year (2024). I was suffering with exhaustion, my joints ached and they were really sore and stiff. I had this awful excessive sweating and a general feeling of feeling unwell. I was prescribed HuxD3 20,000 IU for 7 weeks. I can honestly say that I felt shocking. My legs, hands, fingers, wrists, feet, and ankles all began to swell up. Not just a little bit either, and then came this awful dizziness to the point where I couldn't even leave the house for fear of falling over. I had to nip to the local shop, which is a 10-minute walk, and it took me over 20 minutes each way because I was picking my way like an OAP. When I lifted my leg/foot to take a step, I almost went flying. My eyelids began to swell too. Due to the dizziness, I even went to A&E. I asked them if it was the meds making things worse. They denied it, but I knew it was the meds causing my problems. The only good thing about this HuxD3 was my levels went from 20-12."

• Meg...
• Taken for 1 to 6 months
• February 7, 2022

For Vitamin D Deficiency "So I was prescribed 40,000 units of cholecalciferol a week. I took these for 3 weeks. I thought I was going insane, having panic attacks, weird feeling in my hands and feet, like I couldn't walk, had to lie down, and had no energy. Severe dizziness, as if I was going to pass out, and heart palpitations. I went to A&E twice, but they said no, this couldn't be the vitamins. Funny how I've stopped them for 4 weeks and everything's gone, still feel funny to this day, how long until they are fully out of my system? I feel like there's no end. I would rather have my deficiency back than feel like I'm dying."

• Med...
• Taken for less than 1 month
• April 27, 2021

For Prevention of Fractures "Started taking D3. I was so sick, my hips hurt. My back went out. I was dizzy and moody. Stopped taking it, was taking 10,000 mg a day. Thanks, but no thanks."