Pooh, I'm very impressed that you're still on your feet so much and with your dedication to your job I, and I'm sure everyone here, have the utmost respect for nurses. I've never had an ablation, but I hope that whatever you choose to proceed with next, you can get some relief. I am surprised at how many blocks you've been receiving though, since my doctor said that the more you have, the more your body gets used to them and the less effective they become. He said that's why they do them usually in series of about 6 at a time, and then it's good to wait a couple months before the next series, which is probably why they're not doing any good for you anymore