I am having new problems

I was dignosed with Stage 3a anal cancer on January 25, 2010 after having blood in mystool for about a year or more thinking it was something else. I went through 3 rounds of chemo with them being the 5fu pump for 5 days each time, fought with neausa and diarrhea and 31 days of radiation. I had radiatio burns so bad I was hospitalized for 7 days for treatment. Since then I was diagnosed with Fibromyalgia and Polymyalgia they say was caused by the cancer treatments and I started on Steriods and pain meds but have lost all meds because of the lack of doctors but have been on the steriod since, I have gained 70 pounds from the steriods and now amd dabetic and hypertensive. Back in February of this year the diarrhea got really bad and so was the fecal incontenence, I am having blood with the diarreha. I have lost my health insurance because my husband filed for a divorce in January, so I am having to go to the county hospital for treatment and I am just going to get my first appointment of August 10, 2012. I am scared, I haven't been able to see my doctors since Janauary because of the lack of insurance and so I haven't had a pet scan or MRI since the end of my treatment only anal exams by the doctor. The diarreha is terrible, I work full time as a paralegal and have had to go home numeous times because of accidents it is so embarrassing. No one understands how hard this is, I have alot of pain in my groin area, pressure pains, can't have sex anymore because of the vaginal scarring. I don't know what to do anymore I feel so helpless.