The sound on my phone was fine earlier today but as of 5 pm cst I noticed I was missing calls and the phone never rang. Then I noticed that I was getting email without it sounding. I have all volumes to max. My alarm was supposed to sound at 8pm cst to remind me to take medicine but it never sounded. I tried adjusting and changing the volumes and sound tones and had no sound. I have turned my phone off and restarted with no luck. I then turned my phone off and took the battery out, put it back in and turned the phone back on without getting the sound back. I don't know what to do next. All I have is vibration for ringtones and notifications. HELP!!!