Hi I Am 19 Years Old And Have Been Sick

Hi I am 19 years old And have been sick since sept 2015. It started with a UTI and I was than treated with antibiotics. ten days later I got sick again, and was than diagnosed with c diff which I have had till dec 2015.
I was also hospitalized for 4 days. I have been off antibiotics since dec 2015. This Month I started noticing blood in my stool. I went to the ER. There they found I had another UTI and was put on med. Just this week I had a colonoscopy done. They took a lot of biopsies I received a call today that they did not find anything.
I am at my wits end. I am still experiencing fevers and horrible body pain. I had to drop out of school and have lost a lot of work. I just want answers They did tell me that my white blood count was good. I have a couple good days and than I am so sick all over again. Who Can I see to get some answers.