Limb swelling when laying

I have increased my salt and fluid intake, and have noticed at night, I wake up in the middle of the night and my heart monitor/watch is way too tight. Sometimes to the point I’ve woken and my hand will be numb. Is this something that’s normal because of the increased fluid load we have? Could this possibly be a sign I have increased too much? Just wondering if this is a normal thing… if others have experienced this before?