So you are not taking anything else besides Dbol? If so, you seriously need to get on an AI ASAP, before your Estrogen levels skyrocket, Dbol is one of the most aromatizing AAS out there... It's also pretty toxic, so using at least some cycle support supps would be a good idea.
50 mgs is a a high end dose, I'm not saying that you need lower it, if you can manage the sides, since it's the only AAS you are taking, but don't go any higher than that.
If you want to keep anything that you gain from Dbol only cycle, run a bridge of LGD-4033 (adding also GW-50 & S-4 would be optimal) to your PCT, or if you prefer to your next cycle. However, I won't advice going with latter option, since it might push back your PCT a bit too long.