I suffered from them almost right away - I recall it was only days in. They didn't last very long, though - I'm pretty sure I wasn't having them after about a month. Not everyone gets them, Matt. I've seen you elsewhere talking about not getting any changes yet - well, just over a week is no time at all. Be aware that you're unlikely to see any changes until several months in. I hate to be the bearer of bad news, but it's common.
I had zero noticeable physical manifestations of T until about 3 months (voice change) and then it wasn't until after 5 months that I had noticed only minute facial hair changes (some light blond fuzz turning darker) - that was it. You will be wasting your time and frustrating yourself waiting around looking in the mirror every day for something to change miraculously. Go on about your life and stop fretting. Also, stay away from YouTube - I think that watching YouTube videos of transitioning guys is the absolute worst thing that a pre-T or newly-started on T guy can do. They are often over-exaggerating their "changes" or wishfully saying that things are happening when they're actually not.
Sorry for the rant, I just don't like to see people having unrealistic expectations of things. I hope that you do see changes early on, but don't obsess about it or worry too much.