Bro,
I'm doing eq at 1000mg's a week, and I had the same problem, come to find out I was holding a lot of water. I started taking letro at 2.5mg's/ed and nova at 40mg's/ed, and in about a week and a half, I was fine, back to doing my cardio 4x a week, and my strength didnt drop at all. Plus no more insane lower back pumps from doing cardio or getting winded by just walking to the car. By the way, I dropped the letro down to 1mg/ed, and the nolva down to 20mg's/ed.