Hiya,
So sorry to read about you being unwell, you have all my sympathy. I endured years of hell with my periods, and when I was finally told that I had to have a hysterectomy because I had massive fibroids, and a lumpy uterus, like yourself, and looked pregnant, I could have kissed the doctor, much to his surprise.
Good luck with whatever you decide, and have a good time at the concert xxx