bowel problems

I have had colon problems for a number of years now although they have been getting better I have been experiencing hair loss ever since they developed. I have no history of hair loss in the family.
I ve never used any medication for my problem with the exception of some natural remidies and a more health conscience diet. The problems bagain shortly after a bad case of the stomach flu and afterwards had a very hard time maintaining regularity, and so developing some chronic fatigue. Thats when the hair loss started on both my head and pubic areas. Ive done numerious bowel clenses and for the most part I feel quite well now but I am still experiencing the hair loss.Will it grow back? How can I stop the cause? I ve been to doctors naturalpaths all being very helpfull just never fully fixing the problem. please help if anybody can!