All sorts of memory problems recently

[MxZeal]

where to being.. the past week has been hell and i'm pulling my hair out trying to find the problem. I keep getting memory errors such as "close programs to prevent information loss windows""your computer is low on memory to restore enough memory for programs to work correnctly, save your files then close or restart all open programs" programs close randomly saying it was a memory problem this and that this error that error holy fuck its driving me nuts i looked up every error each time in hopes i can find some new info that might help me but no as usual google is fucking useless giving me suggestions like "restart pc" I've been stalking my task manager all week and it NEVER passed 30% memory usage on a crash or error, one time i even got the error at 8%  I didn't change anything on my PC in the last week except for maybe installing ReClock but that's not open all the time.. I also messed around with pagefile trying it disabled, trying it automatically managed (which is what i had it on since always) and also trying custom sizes nothing seemed to work i removed chrome and firefox to see if it was the culprit.. didn't change all this.. but i never once crashed when playing games .. i ran overwatch witcher 3 AND csgo on 3 monitors and it was up for 6 hours with no problems so i have no clue what else to do anyone anything?

 

I have windows 10, with 16GB.

 

TLDR: only 15-30% memory used, high page file size but constantly memory crashing..