Hi I have recently started playing basketball, and whenever i start playing my left ear blocks and sometimes it hurts, it's really annoying. I don't know the cause of it or how to fix it. I think it may have to do with the loud sounds of the balls maybe! Because when i leave the playground (indoor) and i workout in the gym the ear block goes away by itself! So what is the cause of this? And how can i fix it? Thank you