Temporary HP stacking question

[Selvaxri]

Simple question- Does Temporary HP stack? I was looking at the Cruel enhancement which grant 5 THP for 10 min upon killing an enemy.
If i killed several enemies within 10 minutes, do i get 5 hp per enemy slain?

Also, does this Temp HP apply at the end of my HP pool or at the start?
[basically, Core Rage HP vs Unchained Rage HP]

Thanks.

[Guru-Meditation]

Temp HP are the 1st to go if you get injured.

[Jeff Merola]

It stacks if it's from different sources, not from the same source.

So Cruel would just reset your THP to 5 each time it triggered, but you could combine it with, say, an Aid spell and False Life if you wanted.

[Byakko]

I'd still like to know whether False Life and Greater False Life stack, though...