@grayface_ghost As Ben said above, the Common Travel Area is solid, so from that point of view I wouldn't worry about Ireland, but I would look into the healthcare angle at this site: https://www.transhealthcare.ie/
I'm not knowledgable enough to say exactly what's possible in your situation, just that I've been hearing that even a lot of people who are Irish citizens have been really struggling to access care, so definitely worth looking deeply into.