i'm having ear issues too. i don't have an ocean noice, i have an intermittant ultrasound noise instead- its my own pulse, but loud, muffled and annoying (lol) which isn't affected by moving my head or sniffing or rubbing the side of my face, or anything.. it just comes and goes a couple times a day.
i sympathise- i bet its driving you nuts (mine is). its really hard to focus on anything else when there is a crazy noise right in your ear, and its so frustrating to not be able to fix it yourself. friggin ears....grrrrr!
what did your ENT's say? i've not seen a specialist.
in my hugely uneducated opinion (everything i've learned about ears comes from googling trying to fix/work out what is wrong with my own stupid malfunctioning ear) yours sounds like something is going on in your eustacian tubes to me. like i'd know anything (i wouldn't). i'm curious as to the doctors conclusion, or what professional diagnosis you were given, though. did they say it might be the result of a sinus infection or a head cold or recent air travel?
incidently, my ears always do the hurricaine wind thing when i yawn too... i think thats pretty normal pressure changing stuff- they often pop when i swallow or blink, if i clench my jaw in a specific manner, too.
sorry i probably wasn't any help- all i have to offer is empathy i guess. good luck with it though!