Diarrhea and vomiting?

I had a chemical back in November and before I found out I was pregnant i specifically remember I had diarrhea and threw up at the same time! Well I'm currently 7/8 dpo and I was taking a nap and I started having very bad pains in my stomach (gas pains) I went to the bathroom and started having diarrhea then throwing up I threw up my whole dinner!!! Is this pregnancy symptoms im having or am I just sick? I threw up about 4 times while on the toilet. I know tmi but thanks for any answers !