What is the recommended treatment for blood in the stools, abdominal pain, fatigue, and weight loss?

Hello doctor,

I am a 28-year-old female who is awaiting a colonoscopy. I was diagnosed with GI bleeding after having a history of blood in my stools. I had abdominal pain, diarrhea, loose ribbon-like stools, fatigue, and an unusual weight loss of around 23 pounds in two months. I am also experiencing ringing in my ears, pressure in my head, and rapid heartbeats. My liver enzyme levels and EKG appeared to be slightly abnormal after undergoing blood and laboratory work. During the examination, my GI doctor informed me that the bleeding was not caused by a GI problem and that it could have been caused by my colon from my associated symptoms. I also noticed a larger, painless swelling above my right clavicle, which was later diagnosed as a lipoma.

I am a recently recovered alcoholic, but I used to have a habit of drinking excessively, which I gradually reduced but continued until I noticed GI bleeding. All of the doctors I have seen so far believe my drinking is held accountable for my symptoms.

My pain episodes have increased and worsened over time, and I now have them every day. I feel ill and spend most of my time in the toilet. I can see how the symptoms are similar to both colitis and colon cancer, and I would appreciate your advice given my situation.