I have been lifting weights for the past year and my body fat is down to 14% body fat, I am 90 kg and 1.9 cm tall. I am running a bulking cycle to get bigger and stronger, I want bigger muscles and to feel good when I work out. I am 2 weeks into my dbol cycle and I noticed crazy pumps when I do cardio which makes me stop. Is this normal and how do I prevent this.?