I'm concerned about her too. Her last post did make it sound like she was going to a hospital though, so hopefully she's just checked herself in for a few days and that's why we haven't heard from her.
I think someone else in my area offered to do this already but can't find the post, if anyone knows her last name I could try and see if she's listed in the local phonebook...I guess someone could also try calling the hospitals, there are only a few around here...but I don't know how that works (i.e. if they would tell us anything).