Penis Pain Not sure why

i developed sharp penis tip pain 5 days after possible oral/vaginal. went to clinic day 12 and got roceiphen and centrifixone doses. came back negative for chlamdyia and gonnerhea. Tip pain subsided but now penis feels like a swollen urethra, harder than should be and hurts. No sores, some itching. its now been 4 weeks from occurence. no visual would help, just hurts and seems stiff, havent had an erection in two weeks.

to add to that, no discharge and doesnt hurt to pee, actually look forward to peeing