@attheedgeofscience
As this may be the only thread in which we are meeting, please let me express first my absolute sincere and huge admiration for the incredible amount of work you are doing for the T sufferers community. I will "like" and "share" everything as soon as I will make another FB account (the one I have now is compromised and I have to delete it)
This observation is quite common, yet not widely known by the average ENT - as well as members of this board (apparently).
In my defense:
MJC sounded certain that his feeling of pressure is coming from his middle ears (he is talking about typanometry, which is done for middle ears, and about his lack of success in popping his ears unless he is blowing really forcefully), so because of that I departed from the hyphothesis that his middle ears are the ones that are pressurized.
Another thing that confused me and took my mind away from the possibility that the inner ears are pressurized, and not the middle ears, was the fact that he doesn't mention the slightest sensation of vertigo, even for the shortest period of time.
And also that throbbing? How would that be explained? That's the moment I think when I moved my thoughts from inner ears. How could inner ears throb? Can you think of something that would explain the throbbing? Something very weird here and hard to explain.
I agree with you that after 4 hours of loud noise exposure the first thing somebody would think would be that the inner ears were damaged.
There are salt concentrations within the inner ear fluid that must be maintained at specific levels. The ability to do that is weakened after an auditory insult (without recovery of inner ear damage) resulting in osmotic processes. This is what can be felt as pressure in the ear.
You are saying, in other words, that he got endolymphatic hydrops, which also causes T, not only pressure feeling.
Endolymph with wrong salts concentrations and pressure must cause some kind of vertigo problems, as the same fluid also fills the balance structures.
In the flow chart you provided, one can reach to the diagnosis of endolymphatic hydrops only if he takes route nr 1: non-pulsatile tinnitus -->constant --->vertigo, etc, -->endolymphatic hydrops, in which vertigo is "required" (but MJC doesn't talk about vertigo)
or take the route nr 2: non-pulsatile tinnitus-->constant-->Hearing loss-->sensory neural -->tests-->acoustic trauma (+) endolymphatic hydrops (but MJC doesn't talk about hearing loss)
I think you are right and MJC has endolymphatic hydrops.
I think MJC:
1) has some undetected hearing loss (not all the tests were done) or even undetectable hearing loss (above 8khz)
2) had some balance problems but the brain may have managed to compensate that (it has the habbit to do adjustments and compensate a balance problem) so quickly that MJC didn't even notice.
I think that you may have remained after that loud noise exposure with ETD, the Eustachian tubes couldn't keep up, rather than with fluid in your ears.
Please notice that I said "I think that you may have remained with ETD", which is very different than "you have remained ETD", so I express my big uncertainty about what I am saying.
Did you notice that IMO at the end? Please do. I was very unsure about that ETD, that's why I put that IMO at the end of my message, as a "take everything with a grain of salt".
@MJC just an expression, "take everything with a grain of salt", just an expression, actually from now on to relief pressure you have to AVOID salt (and sugar), as you will read in the link I put below.
The only thing that I express with certainty, without "may", is the fact that wrong pressure behind the eardrum can be put in evidence with an endoscope also, not only with tympanograme, and ETD is among the causes of pressure in the middle ears (besides TMJ, etc)
Well, thank you for that chart and I hope you will keep up the good work in spite of the negative comments and lack of gratitude of some TT members.
---------------------------------------------------------------------------------------------------------------------
@MJC
So I think you know by now what you have to do:
-check for some possible hearing loss with all the tests,
-check the presence of endolymphatic hydrops with electrocochleography, but for that also go "on a bad day"
For dealing with the pressure, as I understand that this is the main complaint, not the T, you have to watch your diet.
I recommend this link:
http://vestibular.org/secondary-endolymphatic-hydrops-seh
That throbbing, still, is putting my brain on hair rollers. Very intriguing. Maybe several problems occured because of the noise. It'a not like noise is damaging the inner ears, but is leaving other structures absolutely unharmed. Sorry to hear your story, but if T is not bothering you, the hydrops has good chances to get solved, read the article. Not the case to lose hope AT ALL.
Best wishes to all.