I have DD in both hands and beginning Ledderhose in
my left foot. I get "cramps" in my hands and my left
foot that I do not remember getting in the distant past.
I notice the sensation most during the evening when
I awake and in the early a.m. when I awake. During the
day and while I am preoccupied, the annoyance disappears.
Spasm versus cramps? I do not know. On my own, I would
describe the foot sensation as a cramp. and the hands
as mildly painful not relieved by stretching. I have
been long perplexed by the nocturnal "discomfort"
associated with DD. On a zero to ten scale, the pain is
a 3 or 4; tolerable, yet perplexing. Perhaps, I sleep on
my hand and "flatten" it unconsciously attempting to
stretch it.

I don't know what you see as a spasm. I have, and did today, feelings of grinding and crunching in my hand. It is like something is growing in my hand. It is the weirdest feeling. Today, it began to go up into my finger. I have had trigger finger in the same place as this, and in other fingers. I went back, to the doctor, only because, the tigger finger was all done, and this thing was standing up in my hand. But, the thing I really was concerned about was, that, the finger felt like it did before...like it was clicking again, and I could get it caught , again in that position. Just like with the trigger finger. But this time, I had a cord in my hand, and this time I had a knot at the base of my finger, and this time, I felt grinding, and crunching in my hand. I went through that all day today, as I used my hands too much. I raise horses. I felt around that hand, and my other one, and low and behold, there are little knots in them. Well, DNA is a good thing, and a bad thing. But, by the luck of the ancestry, we are born with this. Our ancesters had to just DEAL WITH IT... we have options, by the Grace of God.
Whew, this is not nice, but, worse things could be in our lives. Alot worse things.