Curfew is correct - ankle pain has nothing to do with an STI, or bruises on your face, or anywhere for that matter.
Giving oral sex to someone with a penis puts you at risk for oral gonorrhea, chlamydia and syphilis. Syphilis isn't that common, and your partner would have had to have a sore that your mouth came into contact with to transmit it. You would get a sore in your mouth anywhere from 10-90 days, with 21 days being the average. You can test for this at 6 weeks.
Oral gonorrhea doesn't usually have symptoms, but if you got them, it would be a sore, red throat, maybe a fever, maybe swollen glands. If you get symptoms, they usually appear within 7-21 days. You can get a throat swab for this at about 5 days.
Oral chlamydia is thought to be less common than gonorrhea but is still a risk.
There is a risk here, but oral sex is lower risk than intercourse.
The only risks for HIV in adults are:
1) Having unprotected anal or vaginal sex, or
2) sharing intravenous needles with IV drug users.
You didn't have a risk for HIV and didn't need to test for that. I'll let another person respond about STDs since others who post here have more STD expertise, but your ankle pain wouldn't have anything at all to do with an STD.