Weird unexplained nausea mid-cycle?

Please don’t come at me, I know it’s a dumb question but I’m at my wits end. I woke up Sunday (5/31) at 2:00 about to puke because I was so nauseous. I wasn’t nauseous when I went to sleep. It was really bad for about two minutes and then It subsided enough to go back to sleep. I didn’t puke. Ever since then I’ve had varying degrees of nausea all day every day. It hasn’t woken me up again though, thank god. I’d take a pregnancy test but I’m supposedly on cycle day 18. I average 29 day cycles. Is it normal to be nauseous around ovulation? I can’t find anything about this. I’m not even sure what medicine to take. No other symptoms. No stomach discomfort or anything. Please, any ideas or remedies?

Again sorry for the lame question.