Afraid I might suffer from vaginismus

I’m 21 years old, and was diagnosed with endometriosis about a year ago. I’ve never been able to engage in pleasurable intercourse or even insert a tampon without experiencing a strong burning sensation and pain. This is followed by days of discomfort and feeling my vagina sting constantly. It’s like nothing fits and I feel like it’s breaking me.

I’ve been researching about the topic and spoken to two medical doctors about it, and both have suggested that I visit my OBGYN to see if indeed it’s caused by vaginismus, since it matches as an endometriosis symptom.

The thing is I was sexually abused at 17, which neither of them know. I thought I had gotten over that by now, but maybe my body doesn’t agree with my mind on that. Maybe this is a reaction to fear of being hurt again...

So I’m left to wonder where I should look for help: my gynecologist or maybe a therapist?

Please share any helpful information you might have on this topic.