What could be causing my ears to pop all the time?

A couple of months ago i ruined my ears by using a nettie pot and somehow gave myself an ear infection – the infection has well gone, according to my doctor but now my ears pop and crackle all the time – well to be fair i have to open my mouth, yawn or swallow but they are always popping and it’s driving me insane and i’m a musician, sometimes when i pop them i can actually hear again… anyone have any ideas of how i can alleviate this or what it is?
Im reading a bit about TMJ i think it’s called…. does it sound right?