Was just diagnosed with Sinus Tachycardia by my general physician, did echocardiogram heart structure and everything was fine. Holter monitor 24 hr showed heart was still beating too fast (sinus tachycardia).

I'm concerned it could be the seroquel, but I'm wondering if its not the seroquel could it be caused by my anxiety? I have alot of anxiety too. Generally my pulse/hr has been 125 lately at rest, not sure what it was with the monitor on.

Here is a medication list I made up real quick: (also concerned the heart rate/tachycardia could be from the hydroxyzine)

Current Medication List – Frequency – Purpose
Atenolol 25mg – Once Daily – Sinus Tachycardia
Amlodipine 10mg – Once Daily – Hypertension
Losartan 50mg – Once Daily – Hypertension
Spironolactone 50mg – Once Daily – Hypertension
Magnesium Oxide 400mg – Once Daily – Magnesium Deficiency
Therems-M – Once Daily – Vitamin and Mineral Deficiencies
Atorvastatin 20mg – Once Daily – High Cholesterol
Fenofibrate 134mg – Once Daily – Hyperlipidemia
Topiramate 100mg – Twice Daily - Epilepsy
Doxycycline 100mg – Twice Daily – Acne
Venlafaxine ER 225mg – Once Daily – Depression and Anxiety
Quetiapine – 300mg AM, 400mg PM – Anxiety and Racing Thoughts
Hydroxyzine 50mg – Three Times Daily PRN