Ear thumping episodes lasting anywhere from seconds to minutes. ear feels clogged but no hearing loss. ear opens up everytime i yawn, this never happened before. been going on for 5 weeks. no drainage or pain?

The story fits with the normal opening of the Eustachian tube that joins the middle ear to the back of the throat. Allergies/colds/irritants can trigger congestion that leads to tube closure. If closed, air is absorbed from the middle ear and a minor vacuum is created. Yawning straightens the tube & lets air pressure equalize. Noise is perceived. I'd ignore it.