Brain Age 2: Questions

I bought brain age 2 last summer as a travel game for my Nintendo DS. During gameplay or puzzleplay I'm challenged by Dr. Kawashima to increase my skill level performance every 24 hours and a record is kept on a graph at the end of every test. This is what I expect from brain teasers so there is nothing wrong here but after a couple of weeks my prefontal cortex began to throb. This had never happened before with any other game I've played teaser, puzzle, or RPG..!! and in NO way did it feel like a headache.

I do know that Brain Age 2 is designed to stimulate the Prefontal Cortex but is it supposed to throb?

Has this happened to you?




I'm hoping this is normal brain exercise