Hey bro, on either 250 or 500, your natural production slows/stops, once you start. Your best bet now, it to come off and see how you recover, This is a big part of learning how you respond to test, knowing how you recover. I would do a PCT and the from there, plan your next run. Good for you starting with 250mg for your first cycle. I'm sure you made some nice gains and now you can effectively double your dose in the next cycle and get that much better of an effect.