>>82851890yes and no. psychology isnt an exact science, so while there's no "proof" that dreams have a meaning, you can draw patterns from them.
As in, when your brain is stressed, it is more likely that you'll subconciously draw images like teeth falling out (which is an endgame scenario for all living beings that rely on them to eat) because it needs a break.
TLDR: just because some people talk shit, you shouldnt stop taking your meds