DOubt you have a tumor man, he is just playing it safe. Are you just coming off pct or something? your body just may need some time to regulate.
I remember when a doc wanted me to have an MRI on every part of my HPTA to look for a tumor while i was on propecia. My hormones were all jacked up on that pill but he didnt seem to think propecia had anything to do with it. Well sure enough no tumor and the minute i stopped propecia everything went back to normal.