For nearly two years now I have had like a feeling in throat but have had endoscopy and tried ppis, i have a slight hiatus hernia and mild gastritis and this feeling would go away i get reflux occasionally no burning that i can feel but like a fullness in my throat and if i burp i get like all this white frothy foam and its there all the time like right up to the top of my throat which gives me the feeling that something is there