Getting stuck in corners

Well, in some games like aram I get stuck in turrets corners sometimes, but the day before yesterday had it worse. I was playing TT and was going to the jungle with some minions (that followed me) as soon as I see an enemy champ ran back at bot lane (that still had turret) and literally GOT STUCK IN A CORNER WITH THE TWO MINIONS, UNABLE TO MOVE IN ANY DIRECTION and of course got killed. Unfortunately I forgot to record that game :c.

Anybody else has seen this problem?

Is it part of the gameplay (what..)?

Or is it a minor problem that does not need resolve o,o

Thank you in advance for any response :D♥

(EDIT: And sorry for posting first in the wrong place :x)