nausea during the 2ww

so I absolutely know it isn't a pregnancy symptom because it happens EVERY month to me. right before ovulation I only want to eat meat and cheese. And then right after ovulation all the way up until af I feel just sicky. like, if I am not craving something I literally gag and choke on it if I try to force it down. I get nauseous and literally have the hardest time eating. does this happen to anybody else? I just don't get it. I have read that nausea can be (although it's rare) a pms symptom... But directly after ovulation? It's obnoxious! am I alone in this or does anybody else deal with this.