bravegirleating

Hi, I am a 19 year old girl in college and for a few months now I have been having bad bowel movements. Something I should say is that I was diagnosed anorexic and forced into recovery. Since being out, I have gained weight of course, but I instantly started taking laxatives again everyday and drinking a dose of miralax with water almost every day. I don't know if this is somehow contributing to what is happening? Anyway, (be forewarned this will get gross and detailed) lately I've been eating a Vegan diet and I eat lots of apples. I will see chunks of the apple or other veggies that I eat in my stool along with the blood and yellow or sometimes clear or bubbly mucus. Sometimes I literally feel like, when I am passing a stool, it is almost coming out like vomit. Also, I do mainly have this diarrhea, but sometimes I do have normal stools. Other times my stomach will hurt very badly and I can't do anything at all, even though I really feel like I really need to go. I don't know what is wrong. Any help?