Strange feeling in my head

I recently started having weird feelings in my head. Like a glitch kinda feeling
where things feel like I could blackout.I had a panendoscope a couple of days
ago, and this matter has gotten worse. I was given drugs to make me feel
woozy thru the scope. My head feels really off now. When I move my head
or eyes, everything moves funny. Gives my an upset stomach and I feel
like i've been using some kinda drugs.Could this be like not getting enough
blood supply up to my head properly.  This feeling feels awful.Any advise would be appreciated. It's feels even harder to think properly or am I going
crazy??