I've had problems with strep throat all my life, but never as bad as it has been lately - five times in three months, or so. I've been tested for STD's and so has my partner, but it seems like every time I have sex, I come down with strep within a day or two. And not a mild case - within a day, my tonsils have nearly closed my throat, I'm nauseous, and so weak and dizzy that I'm barely able to move. Is it possible that sex is the reason behind this?