Hey Vitor, I'm in basically the same boat as you. I'm doing my first cycle and I'm using sust/dbol tapering off with primo. I've seen a little from the dbol, but from what I've been told the sust should kick in around week 4 and it should be good stuff. I had the sust flu as well, it's some miserable shit and I sure hope that it only happens this one time. I've also had some trouble eating for the first couple weeks, I'm now toward the end of week three and still haven't seen anything really great yet but I'm not struggling to force down food anymore. Good to hear someone else that's going through the same thing for the first time, I've been getting frustrated as hell waiting for results here. From what I've heard this will really pay off starting around week 4-5...Damn well better or I'll be fucking depressed...Good luck bro