My doctor has scheduled several tests that involve my holding still for some time. I've explained to him that I cannot remain in one position for any length of time due to joint pain and muscle spasms/cramps, and asked if there was anything I could be given to help me get through these ordeals. His reply was that others have fared just fine without any medications, and I should be able to as well. Whatever am I going to do? I know the tests are necessary, but I'm scared to death that I won't be physically able to cooperate. This anxiety is keeping me awake at nights. Any suggestions would be gratefully received.