About a week ago I received a handjob from a partner. We are both virgins. A day or two after that I noticed a small painless bump on my shaft, I just assumed it was an ingrown hair. Now today, I've popped it and a tightly wound hair has come out, but the lymph nodes on the left side in my groin are tender and the bump where the ingrown hair was looks like a chancre ulcer. Is it possible that I got syphillis from my partners handjob?