Pete,
No, I would not be working and applying for SSD at the same time. That would send up a red flag in my opinion. It would be like why is this man applying if he can work, see what I mean. You will also need your dr behind you 500% about being off of work and you will need to be taken off work by a dr. Thats how they determine a date that disability began.
Working and chronic pain is probably one of the hardest things I ever did. I stayed totally stressed trying to look and act of the role of someone being just fine, not a person wracked with pain. But, my disability is not for CP, mine is related to crohns disease. My gastro is the one that medically retired me. Your disability has to be expected to last at least 12 months if not permanently. I waited about 3 months before applying then received my first check after being off about 7 months. Now, you if get awarded benefits its possible to get payment at the 6 month mark instead of the 12 month rule. They changed the law on that. It has helped alot of people with this new ruling because if I am going to be off more than 12 months why make me wait that long before being paid monthly checks.
Retirement, its a whole new ballgame even when its a medical retirement. I still do alot of things like I did when I worked, do laundry in the evenings, go grocery shopping in the evening, old habits are hard to break.
I don't know how long your wife has been away from you. But, if you plan on moving to where she is, believe me this will be really hard on both of you. She has her routine of what she does every day alone. If another person happens on the scene sometimes it can rock the entire boat.My husband retired two yrs ago and I still am not use to him being here every day,lol. Nerve wracking to say the least. lol.
Good luck in whatever directon you decide to go........Susie