Within the last 3 days I began to notice 2 swollen lymph nodes in my thigh/groin area on the right side. A couple weeks ago, I had a sore throat, but I never took any medication, saw a doctor, or anything and it went away in a week or so. At first I thought my swollen lymph nodes might have been a hernia, but it wasn't. The doctor I saw said I might have an STD, but there was no blood or leukocytes or anything like that in my urine. He told me that there was some protein in my urine though. He said it probably wasn't an STD, and it was caused by my sore throat. He put me on antibiotics, and I've had 3 out of the 20 doses. The pain has subsided a little, but they are still swollen and tender to the touch. However, I am still scared of the possibility of an STD. The last time I had sex was 3 or 4 weeks ago, and my partner, the only girl I've ever had sex with, says that she is clean. Could somebody please shed some light on this situation and provide some answers, assurance, or whatever?