Welcome to HealingWell.
These forums are a resource for those living with or affected by heart and cardiovascular disease.
You sound like you are very active so may I suggest you make an appointment with your physician for a medical screening exam to see what is causing your sx.
~~Kitt~~Moderator: Anxiety/Panic, Osteoarthritis, GERD/Heartburn and Heart/Cardiovascular Disease. www.healingwell.com"If you can't change the world, change your world"