Sounds pretty much like me. But I even have difficulty washing my hair and shaking hands and putting my hand in my pocket.
I had experimental radiation therapy on the hand that isn't as bad. I have no sweat glands on that hand but the Dupytrens doesn't seem to be progressing. Do you think that surgery for you is inevitable, down the track?
I have heard that Xiaflex is hard to get but results are only temporary.