In general, internet is *the worst* place to check for symptoms etc. I have a runny nose every night, and consensus according to search results seem to be 1. I'm a hormonal young girl, 2. I have a shit-ton of allergies (only activated at night) 3. I have AIDS/Ebola/malaria/going to drop dead any moment now.
It all is clickbait, it all is algorithmic waltz with advertisements, nothing is real, shut the fucker down.
Except I am not. I am sitting upright. I AM STILL UP, AND MY NOSE IS STILL ALWAYS RUNNY AT NIGHT, IT HAS NOTHING TO DO WITH GRAVITY!!!