Ears are popping. Strange

My left ear has "popped" four times in the past 10 minutes, like I'm in a plane. I'm hardly above sea level. Anyone else experiencing this? Made me curious since this has never happened to me asiide from being on planes and a couple times during extreme low pressure weather events (like hurricane sandy).

Decided to post after reading a couple threads about people experiencing strange anxious energy and having very bizarre vivid dreams last night, both of which I experienced. My dreams last night were lucid and before I fell asleep I was slipping out of body with almost no effort. Normally I need to do focused meditation for at least 10 minutes to go astral.

Thoughts?