Loglickychops,
I'm no doctor but as you can clear your ears by just yawning and aren't suffering any pain or serious hearing loss I doubt if you have a problem. The only time I have had a problem when flying commercialy was in a Shorts 360 (unpressurised) when I had a cold and that was my own stupid fault. I really was in pain during the descent.
Since I've been flying a (pressurised) ATR I haven't had a problem, ocassionaly I might have to yawn to equalize my ears in the descent and I tend to do it without realising. If I've got a bit of a cold I make sure my eustacian tubes aren't completely blocked by pinching my nose and blowing gently, if they were completely blocked I would call in sick, even if a normal descent didn't cause a problem you must bear in mind the possibility of a sudden depressurisation. If you really think you have a problem then of course you must see a doctor, but if you don't have a problem it might not be wise to jeapordise your future career by looking for one.........