Have you all felt a knot in yur throat like if you got to throw up or burp but can't but its there…

Have you all felt a knot in yur throat like if you got to throw up or burp but can't but its there all night so you can't lay down?? It's been going on for 3 weeks and it's finally getting to me that even my chest started hurting and now I feel like I can't breath 😭 i need help please