There is no risk here for anything.
STIs are transmitted by oral, vaginal and anal sex, and sometimes by unclothed heavy rubbing of the genitals together.
None of that happened. There's no risk for any STI, including HIV, herpes, gonorrhea, chlamydia, HPV - anything. You have no reason to test for anything.
I don't know what is causing your symptoms. Dehydration? Anxiety? Increase your water intake, decrease alcohol and caffeine, and if you still have symptoms on Monday, see your doctor. It's not related to this encounter.