HPV and anal issues or just Piles

This weekend I've discovered a very large bulging lump coming from my anus (sorry, gross!). I'm wondering if it's haemorrhoids...However, my anxiety levels are so high with anothing down there at the moment. And a quick little look online (looking for pictures or compare it too!) has led me to info about HPV and anal cancer.... 

I know my CC was caused by the high risk HPV so now I'm feeling a little anxious that I should maybe get it checked but I hate calling my GP as I feel like the last 6 months I've been bothering her about lots (I've had some other health issues going on recently that they can't find a cause, and I've been admitted to hospital twice) so I'm worried if I go to her again she's going to think I'm mental, especially if it does turn out to be just piles 

I absolutely hate living in this limbo when I think everything is to do with cancer (I've already been to see her once about a new mole in case that was cancer). 

has anyone every had issues with HPV and anal issues?