Pro's: going home, going back to the job you love, feeling needed at the job, having your own place again. there's probably more I'm not aware of.

Con's: returning to the old worries, it might exaust you again, returning home without as much money as you planned

These are taken straight from your post. I can only speak for me, but I would feel great returning to a job I had left, it would help me feel needed. I love having my own space so that would be great. I would worry about having the health issues return if I went back to a stressful exausting situation too quickly. Only you can decide...but I'm glad you have the opportunity to go back, might be a good thing that the other lady is leaving! Maybe start a poll?