I shot a 9 millimeter about two days ago that's about 24 rounds. I didn't have any ear protection at the time. My left ear was ringing when I was done but soon went back to normal. My right ear is not back to normal. It feels like my ear is stuffed up or like muffled. I can sort of hear from it but like barely hear things. What should I do and how do I tell if I'm going deaf?