Stop everything - don't take any psychedelics and most importantly, cut out the weed. Exercise and sleep and eat well. If the symptoms persist after a week or two, go see a doctor or therapist. There are many cases of what you are experiencing, and and if it won't go away with abstinence and good healthy living habits, you need to seek professional help. It's your mind, after all - don't forget that!
Good luck,
JBArk
JBArk is a Mandelthought; a non-fiction character in a drama of his own design he calls "LIFE" who partakes in consciousness expanding activities and substances; he should in no way be confused with SWIM, who is an eminently data-mineable and prolific character who has somehow convinced himself the target he wears on his forehead is actually a shield.