I always use earplugs when going on long drives on freeways, without any problems even w. altitude changes and the like. Today though I was unlucky. I was driving up and down over a hill with foam earplugs fitted tightly in my ears (because on a loud freeway all day), and I guess the pressure change established a gradient between my earplug infested outer ear and middle ear once I got to the top of the hill. I then swallowed involuntarily, which seemed to cause some massive (and kinda loud) decompression in my middle ear and almost seemed to suck my eardrum out. There wasn't any pain as sometimes occurs, I just had a T spike and my hearing feels a bit "off" as if something's missing. Therefore, it just seems like a bit of middle ear barotrauma, but I am still really worried because of the force and the apparent shock of the decompression/whatever pressure change occurred. Is this damage likely to be permanent, or will I be fine and am I just overthinking things? I have an ent appt. tomorrow anyway, so at least I can start treatment sooner rather than later if it did do something to the inner ear.