Ya, Iron hit it. I'm in week 9 of a Ttokkyo Cyp./ Anadrol (Brazil) cycle. The first week or two it felt like I injected myself with a harpoon. I got the flu, I couldn't walk, sit, anything. I was miserable. Didn't even feel like working out. Now no problems. I run the vial under hot water for 60 seconds, then inject as slow as possible. Sometimes I take 5 minutes to inject. Then when i'm done I rub the site for 5-10 minutes while i'm sitting around and rub it real deep and rough like a deep massage to push anything sitting at the site all around. It does get better bro. I hadn't been sore in weeks but the other day I was a little sore, nothing painful though, after starting a new vial. Later.