Yes, I experience this too. I went to an ent, to be told evrything was ok, except my tonisls were 3 cms long and 2.8cms wide.. Huge. So they were taken out. No cancer was present).
Then it still continued.. I have tried to diagnose myself on numerous occasions ranging from candida, to allergies, to dislocated hyoid bone. Some things have worked, but it goes away when I relax the muscles with tiger balm (on the outside) or have some warm baths. There is a chinese medical condition called "plumstone throat" that can be helped with a patent medicine called "xiao yao wan" that can also help.
My symptoms were: feeling of constriction, sometimes a feeling that my windpipe has grown smaller, slight ear pain, feeling of things moving around in my throat, worse at night, after lots of food, especially when I go to bed. The symptoms will come and go for no apparent reason.. Except maybe underlying anxiety.
I sometimes feel like a total hypochondriac too. I think it is all part of the stress thing... Or it is allergies (i have always had them) combined with stress. This has been really useful to me.. Thanks.