I think I am developing some kind of phobia towards sex. I used to have a high sex drive and was confident in bed. In January I had a severe Urinary tract infection that went untreated for 2 months and took 2 courses of antibiotic to cure. As a result of the antibiotics I got thrush. During this time, because of both these things, sex became very unpleasant and was both painful and had painful consequences such as worsening of UTI symptoms and stinging.
Now, despite being healthy (I have been tested for everything under the sun, all negative), sex continues to be painful. Everytime is like the first time all over again. Recently I have started to tense up in anticipation of pain, and my boyfriend and I can no longer have sex. My libido has vanished and every time he mentions trying again I feel really panicky and on the verge of tears. I can't find a way to make myself relax and it is really affecting our relationship.
I am not sure where to go from here. What treatment is there for this kind of thing or do I just have to work it out for myself?