For the past 6 months, I've had a lymph node become enlarged in my groin (at my panty line). This occurs every month about 1-2 days before my period starts, and the node stayed enlarged until the end of my period. At the end of my period, the lymph node "goes back to normal" (i.e. is no longer enlarged). However, this process repeats itself every month right when my period is about to start again.
I have also noticed that the skin directly above the place where the enlarged lymph node occurs is also slightly darker than other areas near it. It is darker even when the lymph node is not enlarged. The node, when it is enlarged is slightly tender, but I can walk, run etc. without any problems. Just slightly tender when I touch it. It starts off as the size of a pea, and goes to about the size of a small half grape.
I'd appreciate any help I could get. Thanks! (I have made an appt to see a doctor, but was hoping to get more advice.)