Hi, I'm Wondering I Could Have A Sti Or Std

Hi, I'm wondering I could have a sti or std I have had a sti about 2 years ago and I have been having sex with a guy that thinks he hay have it when I had a sti 2 years ago I had been taking these pills for 2 weeks idk how I have it now the guy I have been having sex with days that his abit sore when he pees and he has red bumps on his penis?