I have been breastfeeding for 17 months and I just got my period again after 16 months. Is this normal?

Yes of course! It's perfectly normal for menses to return while breastfeeding. They may be a dip in supply during ur menses but just drinking more water will help. don't worry

Yes. Means your Hormones are adjusting fine =) it will regulate back soon.

Yes it's normal, how I wished my menses could delay so long too!