I've Been Hearing My Pulse In My Ear For A

I've been hearing my pulse in my ear for a couple of months now, it is especially noticeable at night when I am trying to get to sleep, otherwise I only hear it in the day if it is very quiet (I have 2 little ones running around so that is not usually the case). Is this something I should bring up to my doctor immediately or is it something that can wait until my next checkup? Otherwise I am a healthy, normal weight/bmi, 35 yr old woman.