[Heaven's Night]

Yes, nothing to worry about, puffy areolas are not uncommon when they start developing, especially on Tanner stage four it might become absolutely crazy. You can look at my timeline and notice how I had it, if not counting for over all fullness, I had exactly the same thing happen and it lasted for a long time. With side branching breast tissues, it slowly became less prominent.

The exact development you're showing, I've seen on many trans women on r/transbreasttimelines on Reddit. Its quite good source for pictures of typical development and yours is not uncommon.

That's very lucky to get prescribed that way, lucky you for getting such help, makes things so much easier if you want to avoid DIY medicine.