> Did anyone else feel extremely irritable/teary eyed/uncontrollable
> outbursts,  on meat/fat diet?

I had a friend who had to give up low-carb about 10 years ago because it
made his temper extremely short.  I was told back then that too much protein
can make some people aggressive.  I heard that this is true of some dogs.
But I do not have any real hard knowledge on the matter.

Does adding fruit cause problems?  Could you increase his fresh fruit intake
so that he is not getting such a high percentage of calories from protein?
Cantaloupe and berries are good relatively low-carb fruits you might
consider.

Scott