25 year old girl with major hair loss:why?

I'll be turning 26 in a few months and have noticed some severe changes with my hair in the last year. I noticed my hair started falling out around March 2006 and didn't really pay serious attention to it until August 2006. I thought it may have been due to overprocessing(perms and color) and stopped. I switched to Nioxin shampoo in August with hopes it would stop. Unfortunately, it is now almost a year later and things have gotten worse. Besides having hair everywhere, my part is really big and you can see my scalp in several places on my head. They're not patches, just really little hair left all over.

Can someone tell me what are some possible causes of this? I'm young and feel that this is too soon to happen to me. I've been having some digestive issues for about the same amount of time(food doesn't seem to get digested properly, maybe body is not taking in nutrients) and I wonder if there is a correlation between the two. I've always suspected that I have a weak immune system and wonder if booasting it would help. I'll be seeing a naturopath in a couple of months to seek some professional answers but in the meantime want to get your opinions(working overseas at the moment, don't have access to naturopath). I'm doing a colon flush, parasite cleanse and Liver Flush all in the next month. I wonder if I'll notice a difference. Tweet