med changes are a big issue cos they can really stuff you around. are your meds sorted now or do you think you will need further changes?
Another thing to think of is if going back to work might push you back towards another mania? Have enough things changed to make things different this time around?
how is your confidence? do you feel like you can make it through a day? Can you start back slowly a few days a week?
I would discuss it with my pdoc cos I really value his opinion, but I guess it depends on what your pdoc is like...