During my last period I had excessive bleeding and clotting and eventually pass out. Doctors states it's a atery in my vein that's causing it. Not sure, seeking second opinion.

I don't know what you mean, 'an artery in your vein'. They are two different vehicles in the body. You can't get a second opinion here choppa, we can't diagnose and especially in this instance as we don't know you or your medical history.

You are not listening properly to your doctor's diagnoses.

Tick

Although I am not a doctor, you need to seek a second opinion. This may or may not be serious. It may be endometriosis. I had a neighbor who was a nurse and that is what she had. She had those symptoms also.