I just loaded up my game and after a few minutes I noticed my health isn't going down when I take damage. The last thing I did was go to the nether and mine a load of glowstone, then I came back and made/placed them around, and then I left it. Came back and now I cannot die!
Whilst it is fun to kamikaze creepers, I want the fear of death back in my life. Please tell me if there is a way to fix this?
Yeah, peaceful would make sense if you didn't read his post. Not only are there mobs (read: He said he was kamikaze-ing creepers), but he takes NO damage. You take damage in peaceful, it just regenerates.
Or you were being facetious, in which case my bad :P