Overwhelmed

I find myself endlessly tired and constantly overwhelmed. I don't know how it's possible but I don't ever seem to get a break. I don't understand. I'm learning to say no to invitations and I'm growing better boundaries. It seems like no matter how hard I try to get calm, clear moments, they just slip away into the chaos. Anyone else feel like this? I feel like the only way to live without crazy stuff going on, is to be completely reclusive. Here's an example so you can have something tangible: I run a group for women with eating disorders. I stopped some of the other groups and such. I've just been focusing on being a good leader for this group. In the past two weeks, I've had to deal with some tough situations there. One member of the group's health care provider asked the member to sign a consent agreement so the provider could talk to me..... Let that sink in..... I'm no more than a volunteer who runs a 12 step group. What do I say to a health care provider? I know this provider so I'm not so much worried about this particular incident but what if it was a provider I don't know? Another group member is dong so poorly, she may not make it. I don't like holding on to such a terrible reality. Yet I definatly feel led to help people recovery from eating disorders. This is only one example but there are at least 10 more that have happened over the past two weeks like this. What does it mean? Why can't I get a break? Am I doing this to myself? I'm personally, dangerously close to a relapse and I don't feel like I can talk to anyone or do anything. My stress is OFF THE CHARTS. This long weekend may have helped a little but I'm getting very depressed and not sure how much I can hang on. I've reached 18 months without using my eating disorder. I am feeling the pull to be skinnier again and I don't really want to go back.