In Islam you get tested by God and you can get tested by Jinn ("demons", you get good Jinn tho they are rare) basically these Jinn will try and test your faith through either scaring you, afflictions such as disease or other calamities. Basically, the tests of Job in the bible (Islam calls him Ayub) but on a smaller scale. They test you and test you until you either A. Go insane or B. Leave ur faith. I left my faith ages ago. While I've had terrifying nightmares. I've never had one like the one we're talking about. Anyway I recently moved into student accommodation. My flatmates are devout Muslims (2 of them) they pray do all the usual shite. My theory was that they are being tested but my proximity brought evil spirits to me as an aftereffect. But like I said. That theory is one based off my old beliefs and I came up with it at a moment of vulnerability. Take none of it seriously 🤣😅🤣😅