Hello. If I had a single mouth ulcer 3 weeks after a risky experience that healed after 1 week, then two mouth ulcers appear together 6 weeks after the risk (healing in maybe 10 days), then two more appear 11 weeks after (again healing in 7 to 10 days), could this be HIV? There have been no other symptoms at all at any point other than 1 small (5mm) lump seeming to develop under the skin on one side of the neck. Internet research appears to indicate reocurring mouth ulcers may only happen years after exposure - could these reoccurring mouth ulcers be HIV symptoms so early/soon after risk? Even if so would/could they be the only symptom? Thanks in advance.