Definitely go to your gyn and get an ultrasound. I would actually advise that you ask for two, during two different cycles totrack for changes. I did that, and nothing was changing and docs said it was just a complex cyst. I thought about it and went back and said take it out please. I didn't need it and I didn't want to worry about it any more.
The doc told me before surgery if it was nothing he would remove the cyst, if it was ovarian, they'd do a hysterectomy, and if it was colon, he'd take both ovaries. I woke from surgery and before my doc came in, I asked the nurse, what happened. She said I'd had both ovaries removed. Colon cancer met.
Please follow up, and trust your instinct. Good luck!!
Stage 3C, Dx at 42, mom of 4
Colon resection 7/08
Met to right ovary, both ovaries removed 7/10
VATS 7/12, 2 nodes, right lung
10/14 3 lung nodes, Stivarga clinical trial
3/15-7/15 Folfiri & avastin for lung things
Break! One+ year of freedom
8/16 Folfiri & avastin..lung things again
Break! 10 months of freedom
1/18 rib mets, radiation, folfiri & avastin
1/19 rib mets again, radiation, folfiri & avastin