I am so nauseous and I don't know why. I have been feeling this way all week. And no I am not…

I am so nauseous and I don't know why. I have been feeling this way all week. And no I am not pregnant I haven't had sex since last August. I can't take the nausea medicine took while I was pregnant because I breast feed and I can't have pepto either so I guess I will have to get 7up or ginger ale.