Do weed make you hear things?

I take stratera a ADD medication and I just started smoking weed a couple months ago I stopped only after doing it 5 times spread out through 3 months. The last time I did it was on 420 and last night may 5th 2012 I woke up at about 530am to a disturbing voice that scared me. Im assuming it was a late effect from the pill and weed.