Since i was a kid, the water usually get inside my ears every time i went swimming which gives me discomfort, is my ear normal?

Yes: Everyone can get water in their ears while bathing or swimming. Most of the time, it drains out on its own by tilting your head & perhaps rapping your noggin once or twice. Pulling & manipulating ear while tilted may help, too. Never use Qtips as you may hurt yourself. Check out https://www.zocdoc.com/answers/9300/how-do-i-get-water-out-of-my-ear for more options. See your FamilyDoc if still bothe