Do get checked by a competent cardiologist. Even if your vertigo was originally triggered by something else, TIAs are always a possibility. Family history of stroke? Simple tests can rule out any blockages you may have. And if you have an underlying or undiagnosed circulation/cardio issue you can fix it before it gets worse. Good luck and post your results. We all learn from each others' experiences even if it is only what questions to ask your doctor.