i had what was identified as bulbar polio when i was 18. i have recovered with no apparent residual poroblems,except that i have no gag reflex. several years ago(approximately 20), i was starting to eat a sandwich and i could swallow, not even saliva. it only lasted about 15 minutes, but was scart. it has happened several times more recently lasting up to one hour. in that time i spit out almost a cup of saliva that i could not swallow. what can i expect to happen in the future?