My first run with deca and I'm doing 500mg test 300mg deca a week. I'm at week 5 and it's starting to kick in and I sometimes have to stop sets short because my pump is so bad, it hurts and I feel like I'm tearing my muscle apart. I feel like I'm getting fat as fuck on it though. I've gained 9 lbs in 5 weeks since I've been on and it's all in my face, looks like I'm a moonface. Normal to experience skin tearing pumps on deca? Never experienced it with just test.