question: If my carotid artery is blocked, would it cause dizziness when I bend over and come back up? I had testing done with lifeline November 2016 and it showed a mild to moderate blockage in the carotid artery. I started about 4 months ago having dizziness when I bend over to pick up something, empty the dishwasher, etc. It is not every day, but some days it is all day and I have to stop and just lie down. It only occurs when I bend over. It has been recommended that I have a heart catheterization but I would like to have my carotid artery checked out first. Could there be a causal relationship between a partially blocked carotid and this type of dizziness. (The room does not spin, it is lightheadedness following bending over.)