Good. From my experience with hormones, it took a long time before feeling pain. That was a lot of estrogen over a long period of 2 months. Even then its only a slight bruise like pain or sensitive nip pains and just under them. My actual muscle doesnt hurt at all. They darkened a bit and feel thicker, sometimes sticking out more.
So just making sure, for your own health that nothing else is causing it.
There are many known causes of non hormonal growth. Making sure none need special attention is a definate priority.