Hi,when i walk up the stairs i become breathless and dizzy. i am 18 and my family is known to suffer from asthma, do i too? and how can i check ?

You may: Your symptoms are suspicious. A simple examination with a stethoscope could make the diagnosis - see your doctor as soon as possible. (if your exam is normal, you may still have asthma - it can come and go and is often exercise induced. A trial of medication may still be reasonable)

See a doctor: This could be asthma. It could also be an inherited heart problem, exposure to a toxin in your home and a long list of other possibilities. It is definantly not normal. You should see a doctor for a thorough evaluation