Some more observations:
Flexing my biceps it has always felt a bit soft, but now on the cycle it feels rock hard. It's like it has a hard on and it feels great.
On the same subject, I havnt felt any increased interest in having sex, but when I have an erection it is a bit stronger. Never tried Viagra, so I dont know if it is comparable.
The overall feeling is like being younger. I checked my test level before the cycle and it is right in the middle, but since natural test levels decline over the years I suppose I had a pretty high test level in my 20s.
No signs of increased aggression. I just feel very relaxed. But then I never had any aggressive tendencies in my past.