Feeling sick after eating and foods repeating

I feel sick after eating also foods repeat on me it doesn't matter what it is, this feeling happens in sperts and can come on at any point I can't find a link between anything I eat that could give me this feeling but its making me not want to eat because when I do eat I don't enjoy it simply because of the after feeling. I am sometimes sick in the mornings because I wake up with a lump feeling in my throat which makes me cough to the extent I am sick, nothing to do with eating or foods repeating on me. I went to see my gp and he told me it was because I rush but this isn't the case as I am a go with the flow person. I haven't seen my gp re-guarding the sickness feeling and foods repeating on me.