Patti, I would call the doctor. If nothing else, you may find that the dizziness is an expected side-effect of the blood thinners, or they may need to test the nutrient absorbtion in your blood - now that it's thinner, you may need extra vitamins, etc. In any case, a doctor can set your mind at ease where the rest of us can only guess. Best of luck to you, from your AMOS sister, Deana.