Nausea

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Omg I've been nauseous you guys since 4 days after my last period. My last period was between august 5-9. And according to glow I ovulated on the 22nd of August. But I have been nauseated almost two weeks straight!!!!!! I can't stop the nausea and I thought maybe I ate something bad and needed to go BM. I did and I still feel ill. I took medicine in between but I'm still nauseated. What do you all think the problem is?