What Should I do?????????????

Im about 2 weeks into a sust/deca cycle 250mg/wk sust, and 300mg/wk deca. Problem is that the lower back pumps that I get from I'm assuming the sust, are very painfull, and I have not been able to do any walking, period. Walking to stay in shape is very, very, important to me. I'm wondering if I stop the sust , and switch from deca to eq at 500mg/wk would it mess up my cycle or should I just run the deca and eq together for a few weeks untill the eq kicks in, and then stop the deca?

try .25mg/day of arimidex.