Eat or not? Please help!

So today when I woke up I had really bad nausea and my burp tasted like rotten eggs or something really bad. I also farted alot, but I'm kinda hungry now.. Also the taste of the burps have stopped. Should I eat or should I not? I had the same kinda burps earlier as I had when I threw up last time.. (2-3 months ago). And I find it hard to believe that I'm getting sick again because I rarely do get sick. I was home from school, I am 14. I have anxiety and I have a fear of Nausea and Vomiting (Emotophobia?), could that trigger the sudden nausea? I went to bed fine yesterday. We are having Pizza with Cheese and Ham, and the tomato sauce and stuff.. Should I eat it? Will I get worse, and will I throw up? I often tend to wake up with nausea (starting around the time I was sick llast time, I think) So yeah;

Can I eat this without getting worse or throw up?