I would call your doctor or go into the ER to make sure that everything's ok. I know as you get further they don't really kick anymore, just roll around and push, but from what you've posted it doesn't even seem like you get much of that now. I would go just for peace of mind.
I agree with Clysta its better to go and get some peace of mind even if nothing is wrong. I pray that nothing is, I know when my mom was pregnant with my brother that she had something similiar when we got to a few weeks before she had him cause there just wasnt room to move alot and especially did with my twin brothers. Keep us updated! Its always better to go and get peace of mind then worry.
Of course I'm wondering if I'm worring for no reason and I get home eat and drink a bottle of ice cold water. She hasn't stopped moving for almost 2 hours now.
I have my next appointment on Thursday and an ultrasound. I will be bringing this concern up to my Dr.