Another question, I don't know when I'm going to go back to my condominium in Thailand it is purchased. I tend to do things at the whim of my mood. So they want an intended date and return and plane ticket for the DTV application. Is it possible to not have those and it still get approved because I'm not sure exactly when? I'm a very spontaneous person. As always thank you to the Admins and this group. 
I thought it was a simple question I just want the visa ready when I feel like going at a moments notice.
I am 40 years information technology professional with 25 of those with threat analysis and cyber security. But I must be missing something here I can always learn something new. 
Ear barotrauma can cause vertigo. Take a decongestant, make sure you are well hydrated, if it doesn't go away after a few days see a foctor. To prevent it in the future wear earplugs while flying. For detail google ear barotrauma.