I Recently Started Taking Biotin, Immediately My Appetite Fell And

I recently started taking biotin, immediately my appetite fell and i felt constipated and bloated on the left lower side of my stomach.
About a week ago i went to my doctor and she prescribed dulcalex for three days, however I did not mention to her that biotin may be the cause of my problems. After taking the meds prescribed i felt better, however now that i am no longer taking the dulcalex i feel constipated and bloated again, also i am not taking biotin anymore