I had these symptoms prior to TOS surgery, and they went away post-op. Some similar symptoms have since returned but appear to be originating from the cervical spine. I've learned that this is generally irritation of the occipital and trigeminal nerves. I've found Valium to be the best thing to treat this for me (both pre-TOS surgery and now). Ativan should work as well but is shorter acting. Ask your doctor.