We have been in high altitude for four years.One mile and one half above sea level .We are moving in three weeks back to sea level and all that time have never been below 7600 ft..

I have tried to no avail to find anything related to this on the internet but cannot. I have heard that people that live at high altitude can suffer the same effects going back down to sea level as people that get high altitude sickness.

Does anyone know of this happening .. suffering with low altitude sickness?
We did go one time to about 5000 ft for a day and felt weird.. please advise?