Honestly its kind of hard to take anyone seriously on the internet, I believe they exist and have been lurking on the internet for a while to see if I could find anything, there was this guy I meet a while back on reddit who claimed to be a "Vampire" and looking back on it he was clearly lying, but I do wonder sometimes if maybe he was telling the truth, to be fair its the internet and anyone can just reveal themselves without proof because who's really going to believe them, but anyway he seemed real and convinced me, answered every question I had in full detail, crazy work but yea thats my only "experience" with physical vampires. There was another time last year where I really wanted to talk to one so I made a subliminal and looped it overnight, my sister (who had shared the room with me that night) claimed to see a weird creature in a cloak looming over me and she said it moved over to her, so she just closed her eyes until it went away, I woke the next morning with some dark eyebags.. that was the last time I'll ever do something as stupid as that, but I assume that was an astral vampire