Yo, swim says in her own personal experiences weed affects different people differently. Some can handle it with no side affects whilst others (supposedly those with a family history of mental disorders like schizophrenia) get down and depressed. Swim suggests taking a break from smoking weed for a few weeks if you're feeing down for no apparant reason, and seeing if you feel any better. It may seem a long time but in swim's experience, this is how long it takes to stop affecting her as although she doesn't stay high for this amount of time, it still stays in her system and affects her mentally. Swim is a regular smoker and often feels down about things, she blames these feelings of depression on the heightened awareness of society and understanding of the opprobrious world we live in that she gets from smoking.

Peace