Flashter,
I don't think you're understanding the bigger picture here. That picture includes normal clinical exams, and normal test results.
I absolutely do not think your [QUOTE: symptoms are primarily in the bulbar region END QUOTE]. Because you do not show signs that have been observed by your doctors, or by testing, of any bulbar involvement. 'Bulbar' refers to the bulbar region of the brain stem. You have not been found to have anything that points to cranial nerve malfunction at this time.
To keep thinking you have bulbar involvement is as preposterous as a person who has acid reflux, or even strep throat saying they have bulbar issues. Its not how it works. Bulbar is not the area of the body, its in reference to nerves that control the muscles in the face, mouth and throat.
There is no way that we can really know what you're experiencing by talking with you on an internet forum. That is why it is so important that you stop second guessing your doctors, and be willing to listen to what they have to say.
When someone with true bulbar issues has trouble swallowing, especially if it has to do with LMN bulbar, it is purely weakness, plain and simple. Its not how it feels. Difficulty swallowing is due to weakness. If you had weakness, then when you had the swallow study test, the thin liquids that you allowed yourself to be tested with would not have cleared your mouth when you swallowed. There would have been residue in your mouth (which would have been noted) and it would have taken several swallow attempts to clear it.
If your were experiencing UMN bulbar involvement, then, your clinical exam could never have been considered normal.
Honestly, do yourself, your partner, and anyone else that is meaningful to you a big favor, and chill out, LISTEN to what your doctors are telling you.
good luck to you.