Its funny how meds affect us all in such different ways.
I've never felt angry either but I become an insomniac. I go to sleep ok and then after 2 -3 hours wake up and thats it, I'm wide awake for 2-3 hours. I get sooo tired. I go through hungry spells but not all the time, crave sweet things which is unusual for me. 30 should be good for pain though. I go on 30 when I flare and after a few days I notice the difference.
I just hate coming off it, thats when you notice all the aches and pains coming back again!
Its the med I love and hate. Still stuck on 10mg myself.
Goodluck with the rages, maybe punch a pillow occassionally?