I've had the problem of dying when nothing seems to damage me. I always though it was some kind of poison but since nothing shows up in my combat log it's a bit confusing. I'm a solo barbarian so most of the time I can't even see when I do take damage. Added a screenshot of what I mean. In this case I seem to have gotten hit by the Rotghast explosion without the game telling me. but sometimes it's just me standing in front of an enemy that misses me and then I die while he is recovering.
Edit: I just realised that frenzy does damage to me. Is there any way I can make it appear in the combat log (except for modding)?
(Picture explanation: I drink potion and get +40 health, I then take 8 dmg and I'm down at 13).