Probably because you're training harder. I was using 25mg pre-training throughout my cycle, and it was a nice little boost.
On the other hand, as little as 30mg ED in divided doses makes me anti-social, aggressive, and brings my temper to the surface. I am usually a very laid-back guy, but you don't want to be around me right now. I had to talk myself down from punching a car today while I was walking to work because the driver was on his phone and almost hit me while turning into a crosswalk.
It's amazing in the gym, though, since I can channel all that aggression into my training, and the extra bloat means better leverage. If it didn't make me strong as shit, I don't think I could handle two weeks of being a generally unpleasant person.
This seems to be an individual thing, though. One of my training partners loves dbol, another one has exactly the problems I do with it.
EDIT: Another shitty thing about taking dbol ED is the constant lower back pump... just not a compound that agrees with me. I get all the emotional sides at as little as 30mg ED, I don't start to get the lower back pump until about 50mg ED.