John! Mate. What a ride. That must have been a real test. Well done for not giving up hope! Am so happy to hear you figured out the problem.
We actually had a similar problem in our house with its damp walls a few years ago. It was affecting Esteban who slept in that room.
I wish you all the best on your speedy recovery and new life (right next to your old life) in a mobile home! Sounds like fun to me.