Not true. You can get STDs from skin to skin contact, or bodily fluid contact. Condoms don't cover the entire genital area. It sounds like you might have a yeast infection, or maybe a bacterial infection. Just go to a doctor. Stop worrying yourself to death.
Hi, since no fluids could get deep inside your urethra any interior issues your having would not be from the ac or std related. height and weight have no effect on contracting std,s