Have run Deca twice for 12 weeks, 1st run a while ago at 250pw, this run at 600pw. God help me for the flaming I might get on this board, but both times I noticed that I developed piles about 5 weeks in, different to normal piles (like a different vein network to the normal one and more persistent, not responding to creams). I was poes tired on 600 pw as well, like full on lethargic, falling asleep at lunch break, getting home and sleeping for 14 hours, training twice, three times a week. Sex was pretty good though, super delayed orgasm.
As an aside, I was running winny alongside at 50eod to take advantage of the oestrogen related joint friendliness granted by Deca. It didn't fucking help. Wrist pains like mad, back pumps that turned into aches.......winny is a poison for me, and Deca needs to be treated with respect and dedication.