Four weeks ago, my chest w/o have been great. I was making good gains and my lifts were going up as well. Last week, I couldn't lift as much as I did in the previous weeks. I didn't pay attention to it because I know that everybody has bad days. But, I did chest again this morning and I got the same outcome. I felt weak during my chest w/o and I wasn't even getting a good pump. I tried to flex my chest when I got home, and it felt like putty. I'm getting discouraged. I know I'm not tired because my bicep w/o went great. Felt like my arms were gonna pop. I also flexed my arms when I got home and they felt rock hard. Could someone tell me whats going on? Steadily going up one minute, then down the next.