Ok, let me tell you the whole story. First I died and landed on a torch in my base meaning my grave didn't spawn losing my illuminati pet, rupee shickaxe,nether star, ALOT of cobble, fossils aswell as 2 gem things in fossils and archaeology and 2 stacks of emerald nugget and to make it worse, the server restarted. When I got back on, I noticed I have 3 hearts, that was odd because I was unmorphed, then I morphed into a bat and had half a heart. 2 glitches for the price of one
An admin can reset the generic.max.health variable to 20 if u unmorph and suicide sometimes it fixes itself.