Change in visual perception, i feel like i'm loosing colors

Hello, SWIM have a little problem. SWIM can add as this happened to SWIM before, when SWIM was really dumb and took about 5-6 Blue David Stars X's.
And after that colors were much less colorful for few months.
Now this happened again, but SWIM only smoked weed, took some speed , 4mmc , and some 2ce in last 2 months. Is that caused because of drugs?
SWIM can add that he play a lot of video games and sit on his PC many h a day.
This is very annoying. SWIM love colours, and they seem to be much weaker and darker...