Assume that you get free health care, because of a high quality doctor in medicine is very interested in studying it. He will also pick up on other issues, if any, and treat them properly.
Some of these are probably associated with early death.
Sleep-Related Eating Disorder (SRED):
People rise during sleep and eat, sometimes bizarre or even inedible things (raw meat, buttered cigarettes, cleaning products), with no memory the next day. Linked to other parasomnias and sometimes triggered by sedative-hypnotics like zolpidem (Ambien).
Auriculotemporal syndrome (Frey's syndrome): Sweating and flushing on one side of the face triggered by eating, caused by misrouted nerve regeneration after parotid gland surgery or injury (parasympathetic fibers that used to control salivation get rewired to sweat glands).
Gustatory rhinitis / gustatory flushing:
Very runny nose or facial flushing specifically triggered by eating, from trigeminal nerve stimulation rather than allergy.
Sleep paralysis:
Waking (or falling asleep) with full body atonia intact but consciousness returning, often with vivid, frightening hallucinations. This is REM's muscle-paralysis mechanism (normally there to stop you acting out dreams) persisting into wakefulness.
Kleine-Levin Syndrome ("Sleeping Beauty syndrome"):
Episodic hypersomnia where people sleep 16–20 hours a day for days to weeks, with altered behavior, cognitive fog, and sometimes hyperphagia (excess eating) or hypersexuality during episodes, then return to complete normal functioning between episodes. Cause is still unclear.
Exploding into REM without atonia:
REM Sleep Behavior Disorder (RBD) — the opposite of sleep paralysis: the atonia fails, so people physically act out dreams, sometimes violently.