I just did my 10th tren a shot for this cycle and all of a sudden I felt like I weas being stuck by hot needles all over my body. My chest got tight and my esophogus hurt a little and I started coughing mildly but knew it was on the verge of being destructive. It was a little scary for me. Can't wait to see what tomorrow brings! I have allready hit the same spot before with the same gear so it cought me off guard.