I have had 4 IVSMs since November, and every time I do, the spasticity and pain are gone within a day, and I'm walking like a 30 yr old again instead of an 80 yr old...and bladder issues get much better, too, which is great!
I heard that cinnamon candy helps with the metallic taste. And my NP gives me Ambien CR to help me sleep the first couple of nights. I do retain water the first week or two...so exercise more or eat less. Eat bananas, too, since I heard it affects your potassium levels.
Let us know how it goes...and good luck