have you ever taken magnesium to help deal with the low levels often seen in ms patients? it can be useful for spasticity and is an essential mineral nutrient.
coincidentally a friend of mine is in the first trimester atm and suffering with nausea. i noticed with a little research that women with morning sickness have lower magnesium and zinc levels. (slightly lower on average for copper too, but not significantly so)
Copper, zinc and magnesium status in hyperemesis gravidarumhttp://informahealthcare.com/doi/abs/10 ... 0020022113
"plasma Zn and Mg levels were lower in patients with HG"
these three metals are all low in ms patients as well. have any of your docs ever tested your serum levels? if you do get a test, aim for at least 120 ug/dL for serum zinc and 2.3-2.7 mg/dL for serum magnesium. for comparison, in the study above the women with morning sickness had serum zinc closer to 80 ug/dL and magnesium down at only 1.8 mg/dL.
if you want to try boosting mag status with food, aim for 600mg per day while you are dealing with spasticity.
if you can't get all the way, you can try getting part of your daily needs via a magnesium glycinate supplement (eg orange naturals mag glycinate 180mg).
if you are not comfortable with an oral supplement, you can try soaking in an epsom salts or magnesium chloride flakes bath. you could even mix up a cup or more of mag chloride flakes into a cup of water and then apply the solution (magnesium 'oil') topically to the affected muscles.