Hi, thanks for the query. Smoking cannabis (pot/weed/marijuana) is sometimes associated with occurence of intense anxiety symptoms, pounding heart, trembling hands, sweating & intense fear of death. This syndrome in its intense form is known as run amock & has even resulted into unprovoked violence & homicide by the cannabis user. Also prolonged cannabis use can cause amotivational syndrome similar to depression, lack of initiative etc. Not to mention the risk of precipitating psychosis due to cannabis use. Hence best thing is stop cannabis use immediately. Cannabis slowly clears from body & within a few days of stopping cannabis your symptoms will remit. You can also consult a Psychiatrist for use of SSRI type drugs, sos use clonazepam/etizolam (anxiolytic) for relief of depressive & anxiety symptoms. Good luck