Rain had me thinking my leak was a rain related leak.
It was quite a lot of water coming in.
It usually happened in big rains.
But it was the air con drain that was blocked.
Air con was full.
I blew the hose clear and got a ton of water come out.
I guess I use air con a lot in rainy weather, causing my confusion.
Took ages to diagnose and five seconds to fix

Worth telling in case somebody has same issue.