If the GI workup continues to be negative, there are some neurological causes that can lead to uncontrollable spasms. Starting
with an imaging study of the head,
with a CT scan or MRI, would be a recommended step, along with a neurology referral.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin Pho, M.D.
www.kevinmd.