The doctor liking or not liking you is irrelevant. It seems based on the above comment that you need to see the other kind of doctor where you lie on a couch and spill your guts.
Clean up your diet and start minding when you put into your body. Yes, I remember some post of yours where you're eating at buffets and other restaurant ventures. Join a gym and start attacking the climber or the treadmill along with some weights. No, walking the dog is not exercise. Look at your local adult education classes and take up something that you always wanted to do.... woodworking, pottery, archery..... something that challenges your mind to work.