I had really good gear for my first cycle. Only had mild soreness for the first few injections. I assumed it would be the same for my second cycle, and I ended up having to skip school a couple days after the first injection because I couldn't even bend down to tie my shoes. Once I started getting really sore I think my body just over reacted to it even more. I got a crazy fever, couldn't stop shivering and sweating. I was bed ridden and for a while thought I was going to go into septic shock and die. ...Then the rest of the cycle was fine.
If you dont know what the gear is like, start off with small injections.