My first every injectable cycle was Test E @ 500mg/week. Most painful shit I had ever done. Then, here I am now, shooting 2g EOD of Test P/Tren A, and BARELY have any pain. Side effects ... Trensomnia, Trensweats, and that's about it. After every meal, I break out in sweat. Every night, I sweat the bed... my new girl is like "wtf" haha, but she knows I'm "on". The Test is keeping my junk working, it's better than the NASTY stuff called "test e" I had for my first cycle. I'd like to find whoever brewed that and break his/her legs. Because, I was afraid of Test P because of posts of extreme pain... naw, I love it. 90% pain free... and after 4-6 hours, it's 100% pain free.
I did, however, inject into a vein, probably a quarter of a gram mix of test p/tren a, and got the cough, sweaty, cold chilling feel that I've read about. Blehhh. EOD in my delts... I was kind of expecting a slip up. I always aspirate, but I obviously moved. Now I'm aspirating literally ten times through my pin because I'm scared.
I think I got off topic, sorry, but my point is, PAIN from juice is gonna come from, IMO, bad gear or bad injection practice. Test E should be damn near painless from what I've read. It's not worth it to keep putting that nasty shit in you if it's making you hurt so bad you can't work out... just my opinion.