I'm so sorry you've been feeling so awful lately. I hope you get well soon, don't read too much into tests -- he's only trying to justify his original diagnosis. Don't worry, negative feelings can prevent your body from healing. Do things that make you feel good. . .watch a favorite movie; play a favorite video game. . . curl up with a favorite book. . . whatever is healthy and healing for your spirit will help your body.
My thoughts and prayers are with you. Keep us posted, and don't forget rest as well as a little exercise (walk around the block with your doggie) can make a huge difference in how you feel.
Jess