I was walking in my minecraft world, when I encountered a cave. (NO THIS IS NOT A HEROBRINE STORY) I walked in the cave and started mining. As soon as I exited the cave, my game froze. No crash report, and it never recovers and I can't close without resetting my computer. so I have to reopen it. I had to leave anyway so I got up, left and when I came back, my computer was reset. (Most likely my sister because she hates it when I leave the dead mc pages open. I log on and I appear in my world with no inventory. I was dead, in a creeper hole, and my items had despawned. I had absolutlely no idea why. I have 2 questions. One, why do I crash constantly (almost once an hour) and two, why did I die.
If your computer is crashing once an hour I'd check it for hardware/software problems; this sounds more like an issue with your computer than an issue with Minecraft or your computer's ability to play the game; if it only occurs while playing Minecraft it may just be the stress the game places on it exposing a problem. For example, see this thread, where multiple people had the same problem, which was due to overheating in most cases (usually the GPU clogged with dust; it is a good idea to regularly clean out your computer and make sure the fans work, laptops are more prone to this due to their confined spaces).