I just started taking 5,000 mg. of Biotin once daily for about the last 3 mos. for hair and nails. Started having bouts of diarrhea the last month. Wondering if that is a side effect of Biotin. Medications I take: Enaparil 20 mg. 2x a day for BP, Triamterene, prevacid, calcium supplement 600 mg. 1xday, daily multiple vitamin and Boniva once a month. Wondering is this could be a drug reaction?