You say your spine xrays have shown “spinal stenosis, osseous ridging, bilateral foraminal stenois on a few levels, also cord impingement in a couple spots as well as straightening of c-spine”.
To answer your question about a possible connection between spine issues and throat/ swallowing issue—
Yes. People with severe hyperostosis, which refers to excessive extra bone growth along the vertebrae, can have a situation where the excessive bone forms spurs that can impinge on the esophagus as well as on nerve roots. This can interfere with normal swallowing. It shouldn’t cause a burning sensation in the throat, but reflux and use of nonsteroidal anti inflammatory drugs can cause burning.
The neurosurgeon is the person to see.
You might investigate a condition called DISH (diffuse idiopathic skeletal hyperostosis) which pertains to people with excessive large bone spurs. This has been described in association with dysphagia (difficulty swallowing).
Another one is ankylosing spondylitis which refers to fusion of the spine. It can cause stenosis and straightening of the spine. Usually DISH and AS can be distinguished by clinical and X-ray features.
But ALS is off the table for you.
Good luck!