Thanks, my doctor said they can shrivel, so if this is the case and they can't find the cyst either, then fingers crossed I will be able to be covered by my insurance company for any ovarian issues in the future if they do happen.
I have heard of ovaries not being visible on ultrasound. The ovaries are really small - the size of almonds - and shrink some after menopause (even though they continue to produce hormones into a woman's 80's).