Around about a month ago i had unprotected oral sex with another male, Was worried sick that i contracted HIV, been assured this is more than unlikley, I don't know if these are linked or if they jst came around the same time but i have really bad pains in my legs, the pain generally is from knee cap to ankle through my calfs, it's a really aching pain and is waking me up in the night, im also feeling rather tired alot of the time and recentley became slightly constanpated, Anybody have any ideas what this could be, i went to doctors and they think im jst worrying about HIV too much but im not filled with confidence from my docotrs from previous experiences.