Whenever I get hallucinations, they aren't literally hallucinations like you would have on even a very small dose of shrooms... they are all imagined... but if I don't realize this, they seem like actually hallucinations over my vision. I've seen chopper blades three times over (| | | < Like that but only vertically) and I've seen my uncle turn into a ... a blob almost... though he was moving his arm robotically up and down. But it was all perceptual eye tricks.