I Was Told 4 Years Ago That I Have A

I was told 4 years ago that I have a bicuspid valve. Now after having another heart ultrasound I have been told that I do not. Should I get a third test to establish which one is correct. I am constantly having palpitations and have recently been diagnosed with hypertension. I am female 63 years old, not overweight, have PMR and been on steroids for one year but a very low dose.