Hi...
I also get the lump in throat feeling. It seems to come and go, and I cant find any certain foods or anything that triggers it more. Sometimes I take 2 GAS X, and it helps, sometimes it doesnt!!...So, Im not sure if it is gas pressure or not.
~And my neck is also sore, mostly left side. I think its straining the ligaments and muscles there from all the burping I do, or from sleeping on left side all the time, or maybe a bit of both .