I need help. Yesterday approximately 1-4 pm my dog ate a "special" brownie. He is very small and weighs only 15 pounds. He was titching and freaking out last night but once he got to bed he seemed all right. This morning at approximately 7:30 I woke him up. He is still dazed and has no idea what is going on. Should i let him sleep it off all day or take him to vets? He looks very sick and evern i'm a little worried about him. Anyone have an expert opinion on this?