Please please help 😭

Ok this is gonna require some back story and be extremely long

I started having sex last January, with "W" i was a virgin and really didn't have any problems, little bit of pain but it went away and I didn't have any issues from that point on. We had sex very regularly.

I started birth control in may, and then in August I had sex with "B". His penis was a little larger then w. And I found it to be really uncomfortable, I had a really weird burning / pressure sensation while having sex. Felt like no positions we're comfortable and I had a really hard time staying wet but I put it off as I wasn't comfortable enough with him and his larger penis.

About a month later I ended up having sex with W again. And had no problems, no pain. I was fully lubricated. Just put it off on B's larger penis and me not being comfortable with him.

So now present time. I'm seeing a new guy "a" im comfortable with him, his dick isn't very large. I'd say very similar to W's. I had PLENTY of foreplay, I was super relaxed and turned on... but sex was extremely painful again. Even being fingered! I feel like my vagina muscles are tense. I get a horrible burning sensation, like when you take out a dry tampon. I'm so lost, it's making things incredibly difficult.

Lastly, when I went to the gyno in may she made me feel extremely uncomfortable. Im overweight and while I know that is a problem it seemed as if she wanted to focus on nothing other then my weight. At first She asked me if I had been checked for a thyroid disorder (which I had) or PCOS (which I hadn't) yet she didn't send me for tests. We basically talked nothing about my sexual health, I felt like I couldn't ask any questions and I left feeling very down and uncomfortable. She didn't do a Pap smear, and did an STD test with out even really telling me or asking. She made the assumption that the person I was sleeping with was my boyfriend, and I just felt very judged. Lastly, she didn't even talk about birth control and I was extremely uncomfortable and on the verge of tears but that was the whole reason I made the appointment so I got the guts to ask. And she literally was like "sure ask the receptionist on the way out she'll give you some samples" that was it.

I'm now having these issues and want to see the doctor but I'm extremely uncomfortable and don't know what to do. Please any advice or help. I feel so lost. I dont have a good relationship with my mom, and I went to my best friends gyno who she loves so I'm at a loss.