I think I have good news for you. You told me the root of all your problems in the first couple of sentences. You have a serious, serious sleep disorder. The result is that you are suffering from regular bouts of sleep paralysis and hypnogogic hallucinations. Sleep paralysis occurs during the periods between sleep and wakefulness. The body can’t move. It may feel like something heavy is on your chest. If you want to call out for help, you find that you can’t. It can be terrifying if you don’t know what it is. It is a normal phenomenon but most people are too sleepy to be aware of it. Some people, like yourself, are closer to consciousness during this period and so do have the experience you described.
Hypnogogic hallucinations occur during sleep paralysis and feel very, very real. They can include all the sensations: touch, smell, visions, sounds, tastes. People who experience them sometimes think they’ve been abducted by aliens or possessed by evil spirits because the visions and experiences feel so real. Your distorted opinion about your own face may also be connected. It may be something else but let’s deal with the sleep issues and see whether that problem fades as well.
The very first thing to do is to make sure there is no underlying health issue that is creating the insomnia. In the U.S., I’d then refer you to a sleep disorders clinic to get a total evaluation and recommendations for how to readjust your sleep habits so that you would get the 4 – 6 complete cycles of sleep every night that a person your age needs. Please investigate what resources are available in your country.
Simple things you can do yourself include making sure you get good exercise every day, limiting caffeine, alcohol and sugar in your diet, making your bedroom a place you associate with sleep, and creating a bedtime ritual that tells your mind and body that it’s time to settle down and sleep.
A sleep clinic or a counselor who is familiar with insomnia will teach you how to relax and how to reprogram yourself so that you sleep at night. Please take care of this. As you’ve already found out, sleeplessness causes more than feelings of being tired or out of sorts. Lack of enough sleep can cause serious distress.
I wish you well.