Can Lymph Node Cause Abdominal Pain, Heavy Bleeding And Painful Intercourse?

Hi, I have a lymph node that has formed w/in the past year; it's been almost 3 yr. since I had a c-section, and over 2 years since having an incisional hernia repair. I have pain on and off during the whole month, heavy periods, etc. When a doctor told me it was a lymph node, and acted like it was nothing, it surprised me. I don't know what to do; I also have a lot of pain during intercourse.