I was doing fine in the beginning. Kicked in during the fourth week and continued rolling until the 7th week. That's when I ran out of Aromasin and started feeling sluggish and almost depressed feeling. That's what confused the hell outta me. Seemed as though it was the lack of Aromasin that caused me to go down. But, I don't have any symptoms of high estrogen such as gyno, bloating, etc. So, I just contributed it to low estrogen. Really some confusing shit.