Lost my notifications, alarms, and ringtones completely

I've been having problems with my Incredible for a couple of months. I keep getting the "application data space low" notifier. Normally, when I take away all Facebook data it goes away, but for the past couple of days it hasn't. I was clearing things earlier today and cleared away Media Storage. Now I don't have any ringtones, text notifiers, or alarms. I've also lost all my gallery pictures.

Short of doing a hard reset (which I'm terrified to do and fix on my own) is there anything I can do?