My son also had a spot on his lung and it took a long time (from our perspective) for the results to come back so we imagined all the worst. We found out later that they were waiting from results from two different hospitals. And the spot really was "just a spot". It was scar tissue from pneumonia. The waiting is SO hard, but try not to dwell too long (like maybe 1 or 2 minutes) and then switch to all the Good outcomes that it could very well be. About the blood work, did it include checking your Vitamin D level? If that is on the low side, it could make you feel really tired. Sending positive vibes your way for some good news.