I'm sorry you are having this problem It could indicate an ovarian cyst or possibly an infection in your ovary. You should have an examination of your ovary by a doctor and an ultrasound to look at that area.
If you have fever or a discharge or severe pain, please go to the emergency room. They can make sure that ovary is fine and there's no serious problem like the above or a possible pregnancy in the tube that leads from that ovary.
I can't examine or treat you online, of course, but I can give you excellent advice, which is to make sure you don't have a serious problem. Please go to get care.
ok thank you
Take care of yourself.