I think I’m in the right group. My wife (73) has muscle spasms in abdomen and lower back area, 45-50 per minute. At first, it was only when she sat down. As soon as she stood up, they stopped. Now she gets them when standing as well. If she walks they stop. If she stops walking, they start. When lying down, they start but gradually subside. So she is able to sleep. Can anyone tell me what it is. So far nine, local doctors have never seen such a thing.