I thought my first change was voice - turns out I just had a cold. Hah, what can I say, I was excited and slightly too optimistic.
But yeah, defs bottom growth, that happened to me within the first 24 hours, even. I just woke up in the middle of the night within 12 hours of my T shot, and went "woah. Holy sh**"
Throat felt weird, body felt slightly sore, but I'm not sure whether that was because of T. I certainly feel like I have more energy now, though. I'm a couple weeks on T.