Seems like this is caused by being hungry - after eating the penalties go away.

No, the messages: 'You feel soft-hearted' and 'It seems you are getting a cold' are permanent reductions in Wi and To as far as I know.

Anyway it happened 4 times, then I saved and uploaded. It doesn't happen any more, so I've deleted the attachment.

Seems like it might have been a temporary issue, maybe negative increased from Athletics skill? It was always those two attributes though.

The character didn't consume any herbs or strange corpses.

The latest check increased Dexterity, hence I'm thinking the saving and re-launce of the program solved the temporary issue.

Have you been you casting from HP? Santa doesn't give presents to bad boys!

Ah, ok. Only a little bit.
It abuses Wi and To?

Yes, since 1.2p3 or p5, don't remember. The decrease is quite drastical and I guess being a barbarian amplifies it even more.

My bad, sry guys.

But jeez I delved like 2 or 3 times into HP, maybe 2 PP max.

From what I've read here and on IRC, the HP-casting penalty went from pretty lax to very strict. Maybe it could be a little softer on non magic-using classes like your barbarian? They have less PP, are unlikely to use magic to begin with, and the balance RFE was aimed at wizards who constantly bookcasted Teleport and replenish their hit points with spenseweed (which has also been nerfed).

Doesn't seem to be a reproducible bug.

See http://www.adom.de/forums/project.php?issueid=2943. It has been added.