Is it an ovarian cyst?

About a month or more ago I started getting sick to my stomach after I would eat. As well as some pain in the stomach and lower abdomen. I went to the doctor, the doctor sent me to the hospital for an x-Ray, and then they called me back to get a CT scan. They told me I had an ovarian cyst and that it would either get smaller and go away, get larger and they would remove it by surgery, or it would rupture. Then after that they never contacted me.

I went about... 3 weeks later to another doctor, told her what had been the problem, and she said the symptoms I was having didn't exactly sound like an ovarian cyst. She sent me to get an Ultra Sound. When I went they later told me that they hadn't found anything. It was around Halloween and for a while I felt sick and terrible. But some days I wouldn't get sick at all. This past weekend, I'm sad to say, I ate waaay more than I should have. Yet no matter how much I did, I didn't get sick.

Yesterday I was feeling immense cramps and thought I might start. I did, but it was very light. My periods have always been heavy. I woke up this morning and I feel like I'm already stopping, because I didn't see any blood when I wiped. But I suppose it's too early to tell so I'll be waiting later today to see if it continues on.

But I don't know...I'm so confused at times. I looked at ovarian cyst symptoms and most of them fit, but then I remember that they didn't find anything when they did the Ultra Sound. So I don't know what I should do. Please help.