While that's pretty impressive, most people don't have fibromyalgia. Fortunately, dogs can have the same effect on regular old pain: after surgery, patients who have access to a pet wind up using less pain medication than those who don't.
Now that you know who's really responsible for keeping you healthy, it's time to visit your local animal shelter and rescue the dog who's going to help you get your life on track. If you already have a dog, thank them for their hard work and give them some much-needed attention. Go for an extra walk or extend your tug-of-war time today.
Oh, one more thing. Don't get upset that your dog doesn't pay rent and expects only the best food money can buy. After all, their full-time job of keeping you healthy means they need to stay around for a while.