Anyone else experiencing hair loss in their 20s/30s (Australia)?

It feels like I’m way too young to be dealing with hair loss, but it’s definitely happening. Is anyone else in Australia going through this? It would be great to connect with others and share experiences/advice.
I’m a new mum in Australia and I’m experiencing a lot of postpartum hair loss. First, I thought it was just because of this. But now I recall I am having extreme hairfall long before that. is it the water here?