Very possibly Lyme - see
http://thehumansideoflyme.net/viewarticle.php?aid=62 for more info.
I too have had the lack of ability to swallow, the numbness/tingling in the throat, and numerous other issues, all believed to be due to Lyme. These things should improve with treatment of the Lyme infection itself.
Also, Vitamin B12 and Magnesium are important for repair of the nerves and muscles that are affected by Lyme -- Lyme depletes these essential nutrients, so it is good to take a supplement.