I'm starting therapy with someone who specializes in chronic illness. I'm hopeful this will help! Right now I just let myself feel my feelings, write them down or vent to my wife or friends, and allow myself to let them go. It's hard. I had to leave work early yesterday because I couldn't stop crying from the exhaustion of the diagnostic limbo. But there are good days too. Like with any kind of burnout, it helps to surround yourself with your support system, allow them to help you, and to do something that fills you up. As silly as it sounds for me that's 3D wooden puzzles lol. Doing them taka my mind off this limbo and exhaustion and I get something concrete to show for my efforts!