Oh no!!
Sorry to hear that Fair Skies

. That has got to be rough. I wonder if it makes any difference if he exerts himself physically during the day? Get rid of some energy. I just feel so bad for him (and you) . . . I hate it when kids can't just enjoy their childhood.
Lots of drug side affects disappear when the offending drug is discontinued. Is this one of those side affects?
Prayers, hugs and blessings!