Repetitive plantar response

Patient: Several members of my family have a problem that has begun to affect me. The bottom of my foot acts as if someone is running something across the bottom of it. Like the test that doctors do. This causes my foot to jerk upwards repeatedly. It seems to happen more at night. In my mother this has become so bad that it tries to jerk even while she is standing. Any help you can give would be wonderful! Thank you.

Doctor: