Do I have an STD?

I have struggled with this pain in my groin for almost 9 months now. I also have an irritation sensation between my scrotum and thigh that sometimes is in my whole groin. I have gone to many specialists and the best answer that they can give me is that I have a varicose vein and that's why I have testicular pain and slight penis discoloration. But I often get small skin-colored bumps that are irritated when rubbed but don't burn. Nobody can help me and im scared. Please help and thank you.