Not sure if this is the right place to post this but here goes... 
I was just sat eating my burger, and suddenly i felt sick and a wave of nausea came over me and i started to feel really funny and i interpreted it as guilt because i've felt like this a couple of times but I have NOTHING to feel guilty about...

I don't know what's happening but its making me really anxious :( 

Does anyone have any advice/know how to help?