What Causes Pop In Ear And Spinning Feeling After Blowing Nose?

Hi, I just recently blew my nose, and I heard my right ear pop really loudly, as I put down the Kleenex the whole room began o spin. I got on the floor and called my husband, concerned that I would pass out. Several small pops in that ear later the spinning subsided, but I m still a bit light headed, and have a very minor headache. I was so scared.. Is this normal?