memory problems, insomnia symptoms, chronic pain, taste hallucinations, smell hallucinations, visual hallucinations, and twitchy feelings and weakness and paralysis
in muscles are actually very characteristic
of narcolepsy with cataplexy.
In fact, often times, people don't have "Bells Palsy," but cataplexy. Viruses and some vaccines (namely the H1N1) can actually precipitate this, but it can happen seemingly in random fashion, too.