follow up with your dr, something you did 4 years ago would not result in your symptoms.
One year is sufficient time to get an accurate test reading for HIV. HIV testing is different from other STD's. Usually a regular std panel is chlamydia, gonorrhea, and syphilis. Which can be taken as a blood test or swab test from the inside of the penis. HIV can be taken as a blood test, or a swab test from the mouth. But HIV is defintiely a test that is done all on it's own.
Chlamydia can be tested in urine, as well ad gonorrhea but the doctor has to be looking for it. It's not just like oh I see chlamydia in there.
However your a little vague on your symptoms : Is the pain on your penis tip only when you masturbate? Is it localized only to those 2 locations? How about when you urinate any pain?