Hey Planning
One thing at a time... Put you first, ok? Unless you're in shape, you can't, and no one else should, expect you to do more than you can. Finito, end of story.... let them have expectations people always will. Tell them you're doing you're best, and you will. When it's too much, it's too much, and they should understand. If they can't, oh well.
Considiering all you've been through, I think your employers will give you good credits.... If you can't take the pressures right now, that's ok. Don't put too much pressure on yourself, ok? You just had back surgery, remember?
"Our greatest glory is not in never falling, but rising every time we fall." Confucius