@jlharsh I've gone thru the swallowing tests and associated therapy. The lump-in-the-throat feeling isn't related to either Parkinson's or to a swallowing disorder; this is exactly what @brcc mentioned, a clogging in the throat, down by the adam's apple which feels like it's choking me and the automatic response is a deep, gutteral, loud forceful cough (Imagine your uncle or dad doing what we called Hocking a loogie. Absolutely gross, and followed by spitting out a wad of goo) I was just telling her that she may get an ENT response she doesn't want: there's nothing wrong. Exactly what I got. While the surgery at Yale's cancer face-and-throat center giving me another biopsy which was cancer-negative, I now had a bigger open wound. It was this cough I just described which cannot be stopped with a cough-suppressant that set back my healing! Just days after going home with instructions to forget the oral paste, miracle mouthwash and topical lidocaine and switch to saltwater rinse I coughed. Just ONCE. This was enough to undo all the healing I'd done.
So far no ENT or GI or PCP had been able to say what that choking feeling is all about, and is not in eachs field of expertise. If @brcc gets an answer, I'm all ears!