J.R.
Dear M., I agree with Kate. Please be patient with your LO. He does not have the words to communicate yet his needs and fears, so he is doing the best he can. You can try to explain, emphathize and be his spokesman. For example: Say mommy is now going to change your diaper. To do this, I lift your bottom, clean your bottom and put on nice cream so your tushy does not get red....Or...I know you don't like to have your face washed. Why don't we put our hands under the cool water, does not that feel nice...etc.
I find when I talk and explain etc, it helps me connect to my LO and he feels more assured.
Good Luck.
Jilly