How can I fix my social anxiety when I am already pretty social?

So for as long as I can remember, I have always had this problem. I can extremely nervous in new situations regardless of my experience of things. Just for context, I was so shy that I didnt talk for 4 years in high school. I forced myself without medication in college to socialized.

I was able to successfully get myself out of anxiety and I have came a long way. I started going on dates when I was 22 and I failed miserably. I eventually got my first kiss at 25 and my first girlfriend at 27. I am so confident that I can go to bars by myself and cold approach strangers.

In fact on NYE, I was able to keep a convo going with a girl and got her to meet me for coffee.

Even though I did all of that, I still struggle to communicate. People always ask what did I say. My words run together and I struggle to be convincing. I get my anxious even when talking to friends 1on1.

If I had to described my anxiety. It likes a discomfort in my belly that eventually radiates to my head. Once it is in my head, I can't think. I start to forget things easily and I stutter. The up side is that the more I am exposed, the symptoms disappear. However, they reappeared again with a new situation.

For example, I can talk to women now. But I still struggle being good at texting. I can talk to strangers but I struggle to connect. Its a weird balance to be at.

Im only reaching out because I am in my IM rotation in med school. Unfortunately my stuttering causes the docs to think I am stupid which only makes my anxiety heighten. Even now, I have a headache and it is hard to return to baseline. I didnt even struggle talking to other patients. So idk why it randomly is happening now?

Does anyone know any way to get rid of social anxiety once and for all?