I have had trouble sleeping for as long as I can remember. My doctor put me on 5mg Ambien for 2 weeks. I slept great! At my insistence, my doctor let me stay on the Ambien long term. I have been on it for nearly 2 months now. Over the past couple of months, I have developed dizzy spells..more lightheaded than vertigo. I feel really stoned. These spells usually last a couple hours and go away. I had one of these episodes set in nearly a week ago, and it has continued unabated. Could it be the ambien? Is it plausible that it takes 2 months for symptoms to fully appear? I only take the prescribed amount. No history of abuse. How long would it take to get it completely out of my system? I don't like feeling this way.