I just had an incident that I get every now and then, maybe once every 3 or 4 months? Sometimes when I stretch my neck and yawn at the same time something in my throat sounds like it pops and then I feel something in the throat at the very top near my bottom jaw literally pop out of place, it then becomes very painful to swallow, talk, or even move my head about. I've learnt that I can fix it by continuously swallowing, pushing my throat around or even yawning but it's painful until I can get that to happen. Any idea what this might be or if it's dangerous to keep occuring?