Even if no one gives you grief about not working, you still have to come to terms with your own emotions related to being on disability - especially during those periods when the illness is better than usual. For me, I challenge myself everyday to be as active/functional as I can - and I've laid out some basic metrics that will let me know when/if I'm ready to go back to work. If I have one good day, I'll shoot for three in a row. Then I'll try a week. If that works, I'll see if I can reasonably function for a month, etc...
If I find that I've been able to be consistently functional for 3 months, then I'll start looking for a job! But through all the years of promising comebacks, I still haven't made it past the 3-day mark even once. That pretty much tells me all I need to know...