I definitely experience marked tiredness with dbol. I still use it every cycle, but I wish I didn't have to fight this characteristic. I hate stims too so I just tough it out. I have always wondered what the mechanism is by which it has this effect. No question about it being real though. Love an explaination, but I thinkits one of those thiings with no obvious single cause.
What brand dbol are you guys using? I've found the bios to be top notch and strong as they come, but quite potent in the drowsiness factor. More so the pink thais though this is just my opinion.