Do hallucinations get mixed up with the real world?

Technically everyone experiences sleep paralysis every time they sleep. Your body produces glycine and GABA while you are in REM sleep. These chemicals keep you from kicking and thrashing about while you are in a dream. The question comes up with those individuals who experience lucid dreams and open their eyes. In lucid dreams you are aware you are in a dream, so you are conscious. You may try to wake up and you can open your eyes while you are in a lucid dream. You will be conscious and look about your room and see everything as it really is, but you are still in REM sleep so you cannot move - sleep paralysis.

Sleep paralysis, yes, you do actually have your eyes open and you are conscious but you cannot move. You are still in REM sleep so you can experience a dream sequence at this point, and you will see and hear your dream with your eyes open. This is an hypnopompic hallucination, and it can be scary or mundane.

Sleep paralysis only lasts for a minute before your body wakes up and you are able to move. Let me give you a real life example I experienced. I was sleeping on my back (somehow sleep paralysis occurs more often while you sleep in a supine position), and I forced myself awake. I was very tired by I could look around my room, and then I heard a voice. It was a friend I knew. He walked into my room, and sat at a desk while he spoke to someone outside of my room. I could tell that he was talking to his parents about some pets we had in the house. Then I saw my friend stand up, walk out of my room, and join his parents. I could hear them go into another room and head toward out backyard. I forced myself out of bed, but I could still hear the conversation going on outside. I walked outside to greet my friend and his parents, but they were not there... There was no car.. Nothing. It was an hallucination originating form sleep paralysis. That's all. Of course, I thought the hallucination was real, so it can get mixed up with the real world, but it only lasts for a minute, and then you find yourself back in the real world.

Sorry if this is confusing, but that's how it goes. (At least it wasn't scary like getting abducted by space aliens, another common hypnopompic hallucination.)

No, you cannot, because the world is real and perfectly normal, and the other people who is normal will remind you that you are in paralysis/ hallucination, unless the other people don't know you have this illness. If you are in hallucination and if nobody reminds you anything, you will do weird things in real world, which somehow will get mixed up with the world you are in and affect other people if you are not careful. but halluciation itself won't get mixed up with the real world cause the real world is perfectly normal but halluciation itself is an illness and is not normal. So they cannot be mixed. Halluciation can only affect a person's mind, making him think they got mixed up, but in truth/reality it isn't. It could be an illusion, or it has something to do with the thought process/ the mind.
Having halluciations will only get yourself mixed up/ confused, mixed up with the world you believe in, but it does not mixed up with the real world that other people are in. If a person is having halluciations, he would affect other people around him, affecting the real world, but the real world will never mixed up with him because we have doctors to cure people who are mentally ill, i.e. people who have hallucinations.

No, I don't think so. In real life you can tell it's real, when you're dreaming or hallucinating it might seem realistic but you can't tell if it's real or not. If your hallucinations get mixed up with the real world, you might have Schizophrenia which is a very serious and severe mental disorder. But I don't think you have it