I also have a shunt due to hydrocephalus and a few months ago, I had trouble walking. Same problem that started the whole thing. I knew something was wrong with my shunt. Went to doctor who sent me to ER (big mistake) where I collapsed. Woke up in hospital bed. Third day I was there, the doctor arrived to re-set my shunt. Will never use that doctor again. Thankfully, Medicare paid for everything. Probably due to the fact that I passed out in the ER.