Feeling dismissed when requesting further investigation following digital examination

Hi Everyone, I hope this all finds you well :)

For some context, I am a woman in my early 20s and have been struggling with issues that have led to concerns of anal cancer. 

For around a year, perhaps longer, I have experienced bleeding, severe itching, thick discharge, recurrent infections, fatigue (within recent weeks I have slept 18+ hours a night regularly), more frequent bowel movements, diarrhea, and a palpable lump that *feels* around pea-sized around the entrance. There's tiny bump slightly further in, which might be relevant later.

These issues, combined with a few instances of vomiting what looked to be black lumps, led to me contacting the GP.

I had a digital exam within the last year, and was told the lump was likely a skin tag yet I was never offered any treatment for the quite disruptive symptoms. I can accept the fatigue may be a result of recurrent infection or lifestyle, but the discharge and bleeding are quite disruptive to my day-to-day. Yet, this weekend, I had another digital exam and described my symptoms, to which I couldn't help but sense this doctors boredom whilst I described them. During the exam the doctor struggled to feel for a lump, upon feeling what I imagine was the particularly small one, they concluded that it was small enough that it was not a concern. I am suspicious that they did not identify the lump nearer the entrance. It is incredibly palpable during self examination, especially as it is rough in texture and remarkably itchy, but I struggle to direct doctors during digital examination. 

Ramble aside, the GP did not feel concerned, told me to get a hold of antibiotics for my infections (I thought this was their job?) and said that they could refer me to the colorectal team, yet I would be expecting a ~1.5 year wait. 


I consider myself fairly robust and reasonable, I'm not one to feel resentful or disparaged, but I can't help but feel as though a bit more due diligence would be reasonable. I understand that I am young, anal cancer is a rare disease at any age and nothing must wind up a doctor more than young adult hypochondria, but... 

Does anyone have any advice to lend? I don't have a consistent GP and move regularly, considering they have ruled out hemorrhoids, I think it's important to investigate this further, what do you all think?