I have had two instances of severe, sharp, knee buckling pain in my left lower side. It seems to be in an ovary. The last time I felt this pain was around 8 or 9 months ago. I took ibuprofen and dealt with it for a few days and it went away. I am having the familiar pain currently, and it has lasted about a week, and again I am taking ibuprofen as needed, and the pain seems to be going away. I wasn t on my period the first time I had this pain, but I don t remember where exactly in my cycle. I should be due to start my period in the next week or two currently, so I am wondering if this is an ovulation fluke of pain, or if I really need to go to a doctor. Thank you