 [ Symptoms ] biotin & digestion after stumbling upon an article in my health textbook i found that biotin is actually essential to digestion & also produced in the colon i thought the biotin was what was causing my digestive issues being constipated after the morning go how is this possibl  omy doc says i could have irritable bowel because my mother has it i am 19 do not want to ask my dr cause i want a second opinion on this [ Disease ] hi i found this little bit of information i think this shows why ovulation occurs about midway through the menstrual cycle after the follicular phase and is followed by the luteal phase note that ovulation is characterized by a sharp spike in levels of luteinizing hormone lh and follicle stimulating hormone fsh resulting from the peak of estrogen levels during the follicular phase i think your find this is why your hair get better perhaps you need some kind of hormone replacement therapy do hope this helps you good luck