I am a 38 year old female who has skipped heart beats (pvcs) for a while now. I started taking 300-325mg powdered magnesium citrate every evening about 1.5 months ago and they disappeared. Now I can slightly feel them here and there. Can I up the dosage? Should I include calcium and potassium supplement as well with it? My blood tests showed I was on very low end of normal for all 3 of them. I am 5'4" and 200 lbs.