Pimple like feeling inside of my vagina, maybe on the cervix?

Hi, I’m 32F -Stage 4 endometriosis -Adenomyosis -Tramadol 100mg daily -Zofran 8mg daily -Hydrocodone 10mg as needed

I have a weird pimple like structure inside of my vagina, about a full middle finger length inside. I’m not sure if this is my cervix. When I put my finger inside and angle just a little towards my belly button I feel a very smooth rounded area and on top of that I feel this pimple like thing. It’s a little uncomfortable but not super painful. Feels a little irritated. I haven’t felt it before but I do have a history of gynecological issues listed above. It’s absolutely not discharge or a piece of toilet paper, it’s a part of my body. I understand this isn’t an emergency but I’m currently without health insurance and would prefer not paying $256 out of pocket to see my specialist if this is not something to worry about. I appreciate the help, thank you