I don't think Naruto has met Hinabi in any episodes, but in various video games, yes.
baaak
She was never mention she probably died giving birth to hinabi.
naruto shippudden is old
8-9 years old in Naruto and 12 years in Naruto Shippuden
13 years old.
Naruto is 16 years old you can watch the episode when Naruto meets his dad
He was 12-13 years old in Naruto and is 15-16 years old in Naruto: Shippūden.
Naruto is not dying
In Naruto, he's 13 and then in shippuuden he's 16
Naruto's character in Shippuden is sixteen years old. For proof, watch Naruto Shippuden episode 168, Fourth Hokage.
Naruto: 13 Naruto Shippuden: 16