Yes, I have experienced muscle cramps. stiffness, tension etc. I have been on Advair for about a year and started experiencing these symptoms. I went to doc and had metabolic test and blood test to see if low in potassium--nothing found. I had a suspision that my adrenals were getting affected. eventhough advair is inhaled, steroids are meant to suppress immune system and consequently suppress your adrenals.. that is one the main reasons people have to be weaned off slowly(especially prednisone). anyway, I have a friend that had muscle cramps about a week after starting advair--he weaned off and was fine. I, myself, see a naturopath and started taking adrenal extract and felt better within a week. I really did not want to stop advair unless abosolutely necessary. this has worked wonders for me-==my muscle symptoms are gone. Now, i am not saying this was due to advair, but never had these problems b4 advair. you may want to go to a chiropractor who does applied kinesiology---they can tell if your adrenals are taxed and tell you what to do next.
HI-I don't know what kind of area you are in, but if you could find someone in the phonebook called a naturopath or a chiropractor that does "applied kiniseology/muscle testing"--not all chiropractors do this-in fact most don't---you would have to call and ask if they "muscle test for things like low adrenals' if you have a health food store nearby, sometimes there are bulletin boards or pamphlets of alternative doctors. you can also buy adrenal extract at the pharmacy or health food store. it doesn't really have side effects, so you could it for a week and see if it helps, if not, then stop taking it. all it is is a minute extract from a cows adrenal gland, so if you're a vegetarian you may have a problem taking it. basically, it is like taking a vitamin. but the best would be to find someone to do the muscle testing on you.
but, you may have to consult your doctor about getting off the advair. if you noticed the symptoms stopping when you went off of it. mY friend who had to stop advair due to muscle pain/cramps does fine with asmanex-which is just a steroid w/o the long-acting bronchodilator
good luck-write if you have more questions