Re: Muscle pain in thighs that is continuous burning and churning sensation
David,
Sorry I missed your post until now. Are you taking any medication for cholesterol? That will make our myotonia much worse and can cause leg cramping in normal people.
I would suggest trying a little magnesium every night before you go to bed. The best form is magnesium citrate. You can usually find this at a health food store or pharmacy. 250-500 mg is usually plenty.
Ropinirole is usually given for Parkinson's or RLS and works by increasing dopamine levels. Unless you have a dopamine deficiency then your leg issues are probably not RLS but myotonia related. It seems like the doctor would have dropped the Ropinirole and kept you on Mexitil instead, but I don't know your medical history. Magnesium deficiencies are very common as we age...hopefully that will help.