Possible Narcolepsy Symptoms - Seeking Advice

Could be cataplexy, could be something else neurological! Sleep study isn’t a bad place to start, I’m sure your GP will walk through first steps with you. I will say I have diagnosed narcolepsy and I get insomnia pretty bad some nights! However, most narcoleptics have little trouble falling asleep for naps during the day even if they suffer from insomnia (according to my sleep specialist, anyway).

definitely worth getting a sleep study done if possible; sounds like it could be narcolepsy, or some other sleep disorder. Narcolepsy is not known to cause such severe insomnia, instead it's usually constant exhaustion, despite sleeping plenty during the night. But definitely worth exploration, this sounds very frustrating!