plenty of material there.
see another gynaecologist with the diagnosis is my recommendation!!!
Sounds Like Vaginismus to me. It can occur with every partner, a certain partner , or can suddenly occur after years of sexual intercourse. Its not always related to trauma, sometimes it just happens and alot more women suffer from it that you probly even realise. Do you often have trouble even inserting a tampon? and do you do anything when alone? It is psychological, you have trained your brain to expect pain when anything goes in or near your vagina, therefore the brain sends signals to your vagina to cramp up. The brain/mind is a powerful machine and it literally has convinced you, that sex is painful. I myself had it, and for years, I couldnt allow myself to get close to anyone because when it came to intimacy I just couldnt do it. It hurt to much, it felt like someone trying to insert something the size of melon in to a pin hole, whilst running carpet burn with sandpaper, It felt painful and impossible. But with the right guy, and alot of understanding about the condition I slowly moved forward. What you have to remember is that not only have you associated this pain, you also have made such a big deal out of it. It is a MASSIVE issue in your life (Which is understandble) But it shouldnt be. Highlighting it as such an issue just makes you stress even more about it. IT CANT BE OVERCOME. You just need the right help. There is something you can try yourself, which are plastic objects that come in several sizes, and you start with the smallest and gradually over time, insert them in to yourself. Then over time, you eventually can freely insert the smallest and you move on to the second. Just to get your body used to the idea of relaxing the vagina walls when something goes near it, and that pain doesnt always occur. I really feel you should look in to this :) Good luck though, and remember you will get is sorted... I Promise...
*CAN (Sorry) You CAN get over it :) I never thought I would after years but I did :)