I just had a baby 7 weeks ago and for the last 3 weeks or so, I have been getting these ear aches off and on. It will come and go throughout the day and it feels like my ears are muffled, almost like they need to pop, but popping them doesn't help, and there is no water in them. I am also getting a little dizzy while it happens. It happens at least every other day and will last for hours sometimes. What could this be?