Ovulation period is coupled with some physical phenomena that can cause transient fall in blood pressure leading to the dizzy spells. It may also be associated with spells of nausea
, abdominal pain
and sometimes spotting. The reason for all this is hormonal
and nothing to worry. You should be able to manage with some symptomatic treatment. I advice you to have an appointment with your gynecologist since you are experiencing these symptoms only from one year and not prior. Take care.