I almost always have clear ovulation pain and I wouldn't characterize it as horrible, in my experience. Until my pregnancy I always had horrible AF cramps (I passed out on a number of occasions!) but never with o. On one or two occasions (among the years) I considered taking pain medication for o pain but it always went away before I did. Most of the time it is a distinct type of sensation, like a kind of pressure and dull ache. Other times it feels more crampy, life AF cramps but always off to one side. It usually lasts a short time (15 minutes to an hour) but sometimes a few hours.
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If you had sharp pain and don't usually feel ovulation, it may have been an ovarian cyst rupturing - sounds scary but it's usually nothing to worry about. But, definitely get in checked out if your intuition tells you. I hope all is fine! I hope this is helpful!