Nauseous after eating ?

So for the past few days I've been feeling nauseous but I've been noticing after I eat it's way worse to the point where I actually feel like I'll vomit. Does anyone know what this could be? It's been worrying me and my anxiety is really high because I hate throwing up more than anything. I had a huge panic attack the last time I threw up months ago. The reason I hate it so much is because it's so hard for me to catch my breath when I'm vomiting that It makes me scared I won't be able to catch my breath and suffocate. I've also been having more frequent bowel movements along with the nausea. Has anyone else been through this ?