Oh goodness...you're experiencing a lot of what many of us have gone through. It's frightening when you choke-it happens with no warning!

I've had a swallow study, but of course I wasn't experiencing the problem when I was tested. It seems to occur in batches for me...

I learned to tip my head down and try not to drink real cold drinks (most of the time).

Your sleep problems are another issue. Time to see a neuro with sleep disorder subspecialty-my neuro is certified in this. I use a CPAP now...helps tremendously with all those problems.

You really need to let the neuro know about all of this. Make sure you're keeping up your symptom journal!!

And let us know how you're doing