I have been having terrible dizziness or giddiness whichever they both feel the same. When I lie down it feels as if the whole room is turning around me. Can anyone tell me if they have the same thing and if so do you know what it is caused from. It is very scary. I am on Tripiline but I don't think the medication is causing it because I have not had symptoms before and I have been on Tripiline for almost 2 years now.