In my experiences off my 1st cycle of deca 1cc at 10 weeks and not doing PCT was horrible! At the time i really dident understand the severity of PCT ir even knew why i felt how i did. Lets just say i lost most of my gains thru about 4 months bec/ i felt tired all the time=lame ass workouts and cofee 24/7. Shitty appetite. And my my libido was not there to top, and i just thought i was manicly depressed. Ill research more and more about PCT as well as practice it bec/ it is how your body revives it necesary homiostasis.