I took my last dose last weekend after tapering my dose down over the last month, I was only on 5mg. All has been ok, but I keep getting these headrushes. I can only describe it as the feeling you get when you get a shock, like when you are sitting at work and realise you left the iron on or something like that - you know that feeling - your heart jumps and your head rushes. Is this normal? How long will it go on for, been really bad for around 3 days now.