Early neurological affects on restless leg, hand tremors

My son was born at 28 weeks gestation and suffered a Grade II brain bleed which did resolve. At around 7 years of age we noticed that he cannot keep his right leg still. At 21, he seem unable to control the constant up and down movement/shaking of his leg. He also has hand tremors. He also has restless feet which causes him sleep disturbance. As his mother, I have had all these issues (with restless feet and hand tremors) until I was diagnosed with fibromyalgia at age 46 and was put on sleep medications. I know that these symptoms are hereditary, but I've been concerned that they could also be connected to his early neurological impairment. I don't want him to suffer with restless feet and hand tremors like I did and the accompany insomnia. What can I do short of having the doctor put him  on sleep medications for the rest of his life? And, do you have any thoughts as to the primary cause of these conditions?