At the beginning of last August, my total T was 923 on 200mg of Test Cyp weekly. At that time, I backed my dose down to 180mg weekly per the doctors request because he wanted me in the 700-800 range. A month later, it dropped to 740. In April it was still 737. As of a week ago it's now 652. What gives? Is it normal for levels to fluctuate that much in a month?