ovarian cysts

Alexis • Hey yall💖
For as long as I can remember, my periods have always been irregular. But I never thought anything about it until a few years ago. 
I was working one day and I was in so much pain for at least three days. I finally went to the hospital. Upon explaining what happened, the doctors did tests and ultrasounds and they didn't find anything to show that I had cysts. I left the hospital after 13 hours and still had the same issues. 
Now here I am two years later, having the same problems. But this time, it was my boyfriend who brought up me having a cyst. After I told him how I was feeling, he looked at me concerned and said "my ex had the same shit going on with her like what you're describing To me and ir sounds like a cyst."
The pain isn't unbearable but it's making me very uncomfortable and grumpy. 
I had my period last week and I'm having cramps and pains like I am. I'm so scared to go to the hospital because I'm so anxious about what they'll find out.