You probably do have asthma, but everything that wheezes is not asthma and there could be another cause of your wheezing, especially if the wheezing is localized to only one side of your chest or seems to be coming from your windpipe. Your never having had asthma before can only strengthen the suspicion that the cause of the wheezing may not be asthma.
You should begin by using the Asmanex® Twisthaler® 220 mcg (mometasone furoate inhalation powder) or the Flovent® Inhalation Aerosol (fluticasone propionate) on a regular, daily basis, as prescribed. You should then arrange to see an “asthma doctor”, either an internal medicine specialist or a lung specialist also known as a pulmonologist. Your symptoms don’t entirely fit with the diagnosis of asthma and, if not, you will want to find out what it is and get going with the proper treatment.
Good luck.