Sometimes a feeling comes into my head like dizziness but things are not spinning. It only lasts for a very few seconds. It does not happen often. I am not on any medications except for Viactive (calcium) Sentrum Silver vitamins, and Alavert (allergy medicine). I am almost 74 years old. Female. Not overweight. I walk and lift weights several times a week. I am physically fit for my age. Recently I had routine checkup. My tests came back like a 40 year old. I do have a ringing in my ears or hissing but I understand that there is nothing that came be done for that. What do you suggest?