Looking to hear from parents who have experienced their babies having sustained ankle clonus. My newborn who is now 6 weeks has random leg jitters and ankle clonus that lasts for around 10/12 beats on occasion which means " sustained". I am so worried i feel sick and actually didn't sleep last night as every medical sojrce points to cerebal. Palsy or M.S when it is sustained . Genuinely interested in parents experience of this. I am going to bring it up at my 6 week checkup