Please do not rely on symptoms to tell if you have STDs.
When will symptoms show varies for different individuals, and it is likely that some infected people do not have any symptoms.
I recommend to test for STDs at the relevant period, to ensure you are not infected.
Thanks for your input.
I have stopped amox for 4 days now, and no headache now. But still have sore muscle.
Do you mean I would get gonorrhea or syphilis symptoms after 3 weeks?
How long should I wait for STD test (Gonorrhea or syphilis) after amox? How soon can I test for Gonorrhea or syphilis if I didn’t take amox?
Did you get the headaches and such while taking the amox?
How long has it been since stopped taking the amox? The problem with self-treating is that antibiotics can give you false negatives, so unless it's been a few weeks, your testing might not be accurate.
In any case, syphilis is uncommon, and wouldn't give you those symptoms, and not at 2 days. You'd get a painless, round sore called a chancre. It takes at least 3 weeks for this to appear.
Oral gonorrhea doesn't usually give symptoms for 7-21 days after infection.
Gonorrhea and syphilis wouldn't make you feel dizzy, or give you headaches. I wonder if that's a side effect of the amox, but if you've stopped taking that, those symptoms should have stopped.
Make sure you're hydrated, and if you still feel these symptoms, see your doctor. They could indicate something more serious than an STD.