This throat problem is NOT suggestive of
HIV. HIV early symptoms usually include fever, rash, body ache and last many days, not a small local lesion that healed in 1 day.
Your exposure is very low risk because:
• Condom was used
• Break was brief and changed quickly
• No ejaculation inside
• Partner’s HIV test at 55 days is negative
So HIV is extremely unlikely.
For complete reassurance, you may do one HIV test at 6–12 weeks, which will be negative.
You can relax.