This comment leads me to believe both you and your doc don't have a clue.
It doesn't matter how good your own natural test production is, it's been well documented (and you'll find this information on many informative sites about deca) that one single 100 mg deca shot shuts down the body's own test production. I don't think there is a compound that shuts down the body's own test production more completely than deca, ml for ml.
After injecting 250 mg of deca for many weeks, you'll have no natural test production to speak of. PCT is very important after such a cycle.
I'd be very curious to know how well cialis combats deca dick?