Definitely have had audio hallucinations, pretty much every time I hallucinate if its really vivid it will go audio or if Im really tired after my come down. And by no means did I take a high dose at most Ive taken is 200mg, and that is excess, I am female and weigh 112 pounds. The first time I hallucinated I looked into my closet concerned that there was something in there when my boyfriend asked me if he should go check what it was, I said "No she left", there was a woman standing talking on her phone in my closet and she walked out my wall....
If you have been diagnosed, have personal or family history of mental illness it is very likely that taking elicit drugs will worsen those conditions. It is a scientific fact unfortunately. A recent study showed said 90% of people who experience mental disturbances after the use of MDMA, were previously diagnosed with those conditions.