Re: asthma attacks?
You should go back in to see your doctor or a nurse and have them explain things to you. It sounds like you don't really understand what asthma is, how to recognize an attack, or what to do about it. I am assuming that they gave you medications (inhalers) to take, but it doesn't sound like they told you much about them. Go back in to your doc and get all of your questions answered (or, see a different doc, since this one doesn't seem to care much about patient education).
In general, an asthma attack is a tight feeling in the chest, wheezing, difficulty breathing. If you have this, you should take the medications you were prescribed according to the directions on the label. (Generally, if it is an inhaler, breathe out completely, breathe in slowly and deeply while pushing the thingy to make it puff, then hold your breath for a few seconds and breathe out through your mouth.)
But you really need to see a doctor or nurse to get more educated about asthma and have all of your questions answered. Good luck.