ThanksHi there
I'm not sure if this is what you're talking about but I sometimes wake up at night not feeling one of my arms or legs anymore.
The feeling comes back when I wiggle my fingers or toes.
The doctor told me I was probably dehydrated due to not consuming enough salt...(unrelated to the Crohn's). It did help to use more salt, but of course don't do this if your blood pressure is already high...
Hope this helps.