Anyone familiar with Reiki?

Hey guys, I've been considering getting some reiki work done for the first time. I was wondering if any of you guys have had reiki and how it went. Any success? Recently I've been really under the weather and lethargic. Lots of headaches. I haven't had a change in diet or activity level, and I stay hydrated, the only difference is that a huge construction site was opened near my house recently. There's all sorts of equipment and antennas about a half mile from my house now.