Anybody vomit uncontrollably then end up in Er due to dehydration?

Hello. I have been taking 8mg of klonopin for 24 years. I’m tapering .25mg per month. I vomit uncontrollably every 20 minutes. Cannot keep nothing in(not even my other doses of meds) and end up in the Er for iv fluids. The hospital tries to give me more benzodiazepines and I explain it to doctor that I can’t cuz I’m trying to get off them. Last time I tried I lost 70 pounds, but I had a bad doctor who made huge cuts. Anybody else had this happen?