STIs & sexual health
Can you get an sti from oral sex?
Yes. Chlamydia, gonorrhoea, syphilis, HPV and herpes can all be passed through oral contact, and can infect the throat without any symptoms at all. This is why the body sites you have had contact with are what should determine which swabs are taken.
What this does and does not tell you
This is general information, not a diagnosis. Only a clinician can examine you, take your history and run tests. The same symptom has different causes in different people.
If something is sudden, severe, or getting worse quickly, get medical advice rather than reading on.