Hi A,
Have you tried Levsin (or Bentyl).
whenever I have uncontrollable spasms (from IPS) I take one levsin under the tongue and in 5 to 10 minutes my spasms have stopped (at least for 4 hours).
although I suffered more in the months after takedown, I still get the spasms now and then.
although you state cramps really are not the big issue, this drug works wonders to calm that area down.