I have pain with the spasticity. It's like living on the edge of a charley horse or a cramp when it's not bad, and it IS the full cramp when it is bad!
When I have the leg pain, I am scared to bend my leg because I am afraid it will go into the full cramp and stay there for days! There are times that pain is there for days, and then it will just disappear, as if the muscle just relaxed all at once. The hands - same thing. I will be steering my car and have to take one hand or the other off the wheel and stretch it out and massage it to try to relieve the "edge of cramp" feeling. I have to stretch my hands all the time when I am typing.
I have spasticity in both legs and both hands,and sometimes in my trunk area. I used to call the abdominal ones "lifejacket cramps" thinking I had my lifejacket cinched down too tight. I still get them now and I don't have the lifejacket on! I guess it could also be called the MS hug when it's abdominal, but whatever it is, the Baclofen helps! I'm on a minimal dose daily ( 10 mg TID) and I take tizanidine at bedtime for the night spazz. I just increase the Baclofen dose when it's really bad and go back to my usual dose when it goes away.
( my doc knows this and agrees with my increasing the dose. He says I know my body better than he does, so go ahead and increase when needed and taper back when it's over.)