It’s more likely that you would see things that aren’t there when you have Parkinson’s. And that may be more likely if you also have depression. Often, if you get migraines with auras, you see things. It can sometimes happen with other mental illnesses as well, including: And they could argue with you, tell you what to do, or just describe what’s happening. The voices may seem to come from inside your head or outside, like from the TV. Hearing voices is very common with schizophrenia. It’s especially common to hear the voice of a loved one after their recent death. Serious stress, as you might have after going through something traumatic, can cause hallucinations. Some infections, like encephalitis and meningitis, can make you hear things, along with the other symptoms. People with hearing loss in one or both ears may hear anything from odd sounds to music and voices, none of which are really there. In some cases, it warps how you hear things, so they’re not as loud or clear. When seizures from epilepsy affect the brain area that processes hearing, you might hear a buzzing sound or voices. It can happen while you’re using them or when you quit after using them for a long time. Certain street drugs, like ecstasy and LSD, can make you see and hear things that aren’t there. You might hear anything from random sounds to actual voices. But it could happen when a tumor is in the part of the brain that deals with hearing. Hearing things doesn’t mean you have a brain tumor. (But it’s more common to see things - visual hallucinations - than hear them with this type of dementia.) For some people, the voices seem so real, they talk back to them. A similar condition called Lewy body dementia can cause it, too. You’re more likely to hear things in the later stages of Alzheimer’s. Alzheimer’s disease and other types of dementia.You might hear things, too, both as you drink or when you quit after you’ve been drinking for many years. Heavy drinking can cause you to see things that aren’t there. Mental illness is one of the more common causes of auditory hallucinations, but there are a lot of other reasons, including: The sooner you do, the quicker you can find out what’s going on and get treated. No matter what the sound is, it’s a clear sign to go talk to your doctor. But others might be neutral or even pleasant. Sometimes, they’re mean, critical voices. If what you heard really doesn’t have a source, it might be an “ auditory hallucination.” It can range from a simple sound to hearing music so clearly, it’s hard to believe there’s no band or radio nearby. Nothing throws you for a loop like when you swear you can hear something that doesn’t seem to have an explanation.