Feeling so sick after eating chipotle

So I was really hungry today and went out to get chipotle for lunch. After a few bites I immediately felt nauseous and simple sick to my stomach. It’s not sitting well. I worried I was pregnant so I took a test and it’s negative, but I also just got off my period like a day ago which last a little over a week. I took 4 tums and I still feel so sick. I want to throw up or force myself to throw up