An observation and a question here. It is going on 12 months since my diagnosis of GCA. My doctor and I have disagreed on whether .5 mg can make a difference. It took me four tries to go from 11 to 10.5 mg.. He says to just reduce. Now recently I reduced from 9 to 8.5 mg and on the third day I had such intense fatigue...not the kind where you stay up too late and are tired the next day, but the kind where you feel that your "battery" has become very weak. This lasted for 8 days and during that time I was very tempted to go back up, but kept thinking "one more day". Then on the 12th day I woke up and felt back at full strength and it has been 5 days now of feeling good. Any ideas on what was happening? Was my body just adjusting? Has anyone else experienced this? This has not happened before on my "journey".