The only reference I've seen to him having a mental illness was a comment on Facebook but it didn't come from his wife. Is there a link or something to where she said it? (I apologize if I missed it. There have been so many references to his state of mind I can't keep track.)
The other thing, imo, is if she did say it she is the one who would know better than anyone else. If he has a mental illness (not suggesting he did as nothing I've seen verifies this - I sure don't trust one random FB comment) he might not want everyone else to know and only his wife would be aware.
With all due respect, I must disagree with you assumption. Initially, on the Help Find Mike Kimsey page, someone posted the circumstances surrounding Mike's disappearance. Included in the statement was the fact that 4 days after Mike was missing, his wife contacted Mike's parents to let them know he was missing, and then she called the police. When she saw this posted on the Find Mike page, she posted on her own personal Face Book page that Mike is Paranoid Schizophrenic. This was the first mention that Mike was mentally ill, and no one else in his life, including his doctor, has ever heard this before. He has no diagnosis, no friends ever noticed any change in his demeanor, behavior or disposition, no neighbors either, which he saw daily and was close neighbor friends with quite a few. His family had never heard of anything like this, never noticed any issues, and no family history. He received an FAA certification for Safety and excellent mental and physical health, just 18 months ago. Paranoid Schizophrenia does not just happen over night at 48 yrs old. It begins in the early 20s usually, if not before, it gradually manifests over time, it includes delusions, hearing voices, and bizarre behavior. None of which applies to Mike, and is laughable. So, the question remains "why" would the wife post this or imply this to police? Several of Mike's personal friends who were "friends" with his wife on Face Book, criticize her post, and she immediately removed the post. She ultimately deactivated her account. She has had no presence on the Help Find Mike page. She would not know better than anyone else on something like this. If something were wrong, then she MAY know that much, but she is not a doctor, and it is not her place to diagnose or label Mike. At the very least, the mere suggestion of this would be harmful to his career, so why would she even make this statement for any reason? This begs to be questioned. The only thing that you can find on the Help Find Mike page is where his friends and family have responded in disagreement to her post and tried to make it clear that it was a fabrication. And this is not to point fingers other than to factually state where this information originated, and hopefully this provides a small piece of the puzzle.