Ear Popping (Non-Valsalva) — How Dangerous Is It?

I pop my ears voluntarily, by opening up my mouth like I am getting ready to yawn; I do so quite gently and not forcefully. Recently, this has resulted in a dramatic opening of my eustachian tubes which is pretty loud. Unfortunately, on more than one occasion this has also resulted in a bit of sudden hearing loss and vertigo, including today.

I know that other ways of opening your ears, including the vaslava or tonboye maneuver, are extremely dangerous for your middle and inner ears and I never practice them. What I do seems to be much more delicate, but I am wondering if it does damage all the same?