no man normally you cant hallucinate with weed, unless you got psychological problems, or whatever. ive never had any hallucinations with weed or anything, weed is a psychological high u know, not visual like shrooms(wich is both by the way). i only had halluconations after i didnt slept for 50 hours and i smoked a joint(i took pills). i saw faces of comic books and many other thing. that was one of the scariest moment of my life. i tought i was becoming insane even if i knew i werent.... anyway.... check this thing out its really not usual man.

thats an advice

peace