Bacteria? Mastocytosis? Herpes? HIV? Cancer?

About 9 months ago I got a raised bump that almost looked like a pimple about the size of a #2 pencil on my belly and it itched slightly and when I touched it a slight dip or hole appeared in the middle which was probably about the size of a really thin needle. I squeezed it and whole bunch of juice came out and later on blood and it spread to surrounding pores and for a few months there were about 5 pores that bled blood and I kept squeezing the sore until it got smaller. After a few months it kind of healed but left a scar that looks like mastocytosis except with a white center. It still feels like its filled with fluid. It didnt re-occure for a few months except last month the fluid built up a little bit and I had to give it another squeeze. It was minor but it still bothers me and feels like theres fluid or something under the skin. Now it just looks like a brown scar. Does anyone have a lead for me to research the doctors ignore me like im crazy. This thing oozed blood and it hurted. Now its a brown scar. The scar is about the size of a #2 pencil. It still flakes from time to time. HIV? The sore was never indented it was always swollen not a crater. Not like a crater. It left a white papule i would call it in the middle of a brown ring. Tweet