Need Help - Offered Workers' Comp Field Nurse Case Manager Position

Hi - I've been a medsurg/tele nurse for 2 1/2 years and a NICU nurse for almost 1 year and I'm burnt out on both bedside and working nights (I think more so nights than anything, and it's taken a toll on my health, relationships, etc.). So I started looking into Case Management positions and workers comp really appealed to me. Interviewed and received my first offer from Aetna this morning. I'm wrapping up final interviews with ICM (Integrated Care Management) this week and think I have a fairly good chance of getting an offer from them as well. The thing about it is I'm taking a pay cut - Aetna offered me about $10,000 less annually than what I make at the hospital doing my 3 shifts a week (not including when I sometimes work per diem at my old job, which in that case would be about $15,000 less annually). The position is hourly and I was told there can be some overtime, but I don't want to have to rely on overtime to be compensated for what I think I'm worth and the income that I've been accustomed to.

It also seems like Case Management, particularly in workers comp can be pretty stressful and a lot is required of you from the insurance company. My question is to all the workers comp case managers out there - do you love the work? Was it a hard transition from acute care? Do you find it rewarding? What are the challenges? Lastly, can it be lucrative salary wise the longer you work in it and once you have your CCM? Just need some real world input that would help me make a better informed decision. Thanks in advance!