All at once I couldn't move, talk or breath? What is wrong with me?

[Ben]

My ears made the same sound they make when you yawn but it grew louder and more uncomfortable and then I couldn't move, speak, yell for help or even breathe. I am also on pain medication and anti anxiety medication. I know pain medication slows down the respiratory system or something but that cant be it. This has happened one other time and it scares me to death. I feel like I am dying. Someone please tell me what this is. I know the noise in my ear has at least some relation because it grew and grew before the episode and persisted during. I've heard sleep paralysis and sleep apnea but I don't think that's it but it could be. Please let me know if you have any other ideas... Please help me! Please help me! Thank you