I haven't noticed a correlation between eating before bed or not and nausea. (I've been keeping extensive notes since I got out of the hospital.) I only wake up once during the night, usually around 5 am, to pee, and I've never had nausea at that time. Sometimes it happens after I drink some water (which I always do after I wash my hands), sometimes it waits until after I get out of the shower.

It's seriously mindboggling.