difficulties breathing?!

so I've been having difficulties breathing for the past couple days. I have to inhale very much air about two or three times in a row in order to feel like I've got enough oxygen, but this only last for 30 seconds to a minutes and then I have to inhale deeply again. 
this has been happening to me for about almost a year, but it only last about a week and goes away but then comes right back after a couples weeks or months. I once had asthma as a baby, could it be that my asthma is back or what?