symptoms of aortic stenosis or is it just anxiety?

I have aortic stenosis (0.8 mm) and I have been having symptoms during high levels of stress at university I work and have a rather stressful life at home. I have chest pain (feels like needles) on my left side mostly, high heart rate due to constant worry and stress, I have dizziness and headaches. I have also been having these symptoms during cardio exercise, as well as shortness of breath and headache. Are these symptoms of aortic stenosis or is it just anxiety? Also, I do drink a lot of coffee and have insomnia, so I don't really sleep well (or much during stress times)