all day my groin area has been hurting and I thought I pulled a muscle in my sleep or something. I realized about an hour ago that it is actually quite swollen and tender, also my back is really hurting me. I know I have an inverted uterus and was told that's why I experience back pains. Is there any chance the back pain and the swelling could be related? also am I correct in assuming it is a lymph node? Any help would be highly appreciated, I was diagnosed with endo 2 years ago and I have ovarian adhesions.