Waiting inpatiently.

So I was at work talking to my friend and out of nowhere I felt dizzy so I told her I had to pee and took off running, hours later I came back and apologized for leaving so fast and told her that I was feeling dizzy so she goes and asked me if I was pregnant and I told her no and laughed but now I'm worried wondering if maybe I am bit I don't think that I am I think that I was all of that coffee and muffins that I ate this morning that made me sick it has happened in the past but now I'm worried so this is the moment when I miss my period the most. I would be okay if out of nowhere it was to visit me. Lol