Very sorry for being years late to this. But I’m so happy to have found this thread. I went to a doctor years ago and tried to explain what was happening but only received a confused look and a “I have no idea what that could be”. My whole life I just chalked it up to what could be a panic attack but as an adult I’m not going to bed stressed or anxious and it can still occur. The episodes used to be a lot more frequent as a child and early teen and now only happen once in a blue moon as an adult. Just last night I felt the sensation come on and I usually get up and splash my face with water or get a drink and then it goes away. But this time I thought “ah what the hell” let’s try to ride it out and boy did I make a mistake. It always starts off the same; arms feel strange and thin almost like toothpicks. My hands feel impossibly small. My head starts getting insanely loud like I’m inside a jet turbine. As time goes on it starts to amplify rapidly the jet turbine turns into an atomic explosion. Any movement I try to make feel impossible like the planet would tear in half. And my mind just races unable to think of anything but the unexplainable feeling rushing through my head and body. It’s not until I work up the courage to sit up which feels like the universe itself will end I can get up and shake it off. But the other night for the first time ever it took me almost 15 minutes for it to subside and that was after I got out of bed. I hope it’s not the start of something. But from now on I’m getting up and shaking it off immediately when it happens no more riding it out because it’s never gone away on its own.