Vaginismus

I feel hopeless. My boyfriend and I have tried to have sex more than 10 times now and every time we do it’s SO painful for me, almost like a burning feeling? I have tried everything, lube, condoms, foreplay, watching porn together, different positions and it’s still so painful. When I went to the doctors all they said was that I didn’t have any infection or sexually transmitted disease. What do I do ? Is this Vaginismus? Please help ❤️