I have to say that, like BonusMom, I was struck by the same question!! You are expected to babysit and get a job and pay half of the rent? Like BonusMom, I may be way off base here and way out of line, but somehow this does not strike me as a fair offer!
I have all of the same questions as BonusMom, especially considering your health issues and your need to have good medical care.
I, too, apologize if my response is due to ignorance of the true and complete facts.
Peace and Blessings
Look For The Good and Praise It!