Patient is in early 70s, female, very healthy, but has a slight thyroid deficiency issue that is adequately treated with the relevant drugs. Now, she occasionally (rarely) mentions that she experiences during the night very strong earthquake sensations. The experience feels to her 100% real, and is really frightening. She feels her bed shaking, etc... She is typically asleep. And, the event wakes her up in a state of anxiety. But, no earthquake has occurred. What could it be? What should she investigate with her health care providers?

  • @CountIblis - Please do not answer in comments. If you are requesting clarification, make sure you are not offering a diagnosis. – anongoodnurse Nov 17 '15 at 6:17
  • R.Doto. My understanding from talking with this person is that it is different or a lot more than what you suggest. I personally have suffered from "exploding head syndrome" or whatever it is called. This is a weird and benign disorder where you wake up in the middle of the night hearing a heart-stopping like bomb noise. And, that's not just a nightmare thing. This person experiences a similar thing, but instead of hearing a bomb, she feels like she is in the midst of a 7.0 earthquake. – Sympa Nov 17 '15 at 17:08
  • Also, does the patient live in an area of frequent tectonic activity? – user19679 Nov 17 '15 at 21:51
  • The person does live in the SF Bay Area. But, she experiences the equivalent of violent tremors when none are recorded locally and roomates and neighbors present do not feel anything. Also, about Hypnagogia... based on the description at Wikipedia, this is no better an explanation than someone stating that person has nightmares. This is something very different. The closest thing is think of the "exploding head syndrome" that I have experienced but instead of bombs think massive earthquake sensations. – Sympa Nov 18 '15 at 4:53
  • @R.Doto - If you need three comments to say something, please put it in an answer, don't keep adding comments. – JohnP Nov 18 '15 at 14:45