My sister has had a shunt since infancy due to hydrocephalus. Was changed @ age 23, she is now 58. Past few days suddenly started falling, balance issues, headache and shakiness -not seizure like. Had CT scan today but was only told it s normal. Don t know if she s having shunt problems or what. This is totally abnormal for her. Do I take her to ER or what? Not sure what to think right now.