The mysterious sensation of being watched, inexplicable shivers, strange voices — if you're experiencing a very creepy feeling, you may be inclined to blame it on your intuition, the supernatural, or maybe just on watching too many bad horror movies. But if déjà vuwasn't weird enough on its own, some creepy feelings can actually be a sign of a health issue. I'm not saying it's not ghosts, but I'm also saying it's, well, probably not ghosts.
Many horror classics have their origins in actual health conditions; for instance, clinical lycanthropy is a rare psychological delusion in which somebody genuinely believes they can turn into an animal, and that's part of the history of the werewolf myth, according to Live Science. If you're experiencing a repeated strange feeling that you can't explain, don't dismiss it as simply your imagination. Signals from your body and brain can be confusing or scary, but that doesn't mean they're not very real for you. Furthermore, social stigma against mental or physical health concerns can make it more difficult to get help, especially if your symptoms include an eerie feeling. Document your symptoms closely and try to be calm while they're happening, and find a medical professional who takes your complaint seriously. Here are nine feelings we typically dismiss as creepy that can be signs of a greater health issue.