What am I allergic to?

I started having runny nose (clear) in June (Toronto, Canada) for one whole day. I had itchy ears, itchy nose, and syper itchy throat that made me cough many times a day. I had head cold and stuffy nose and slight fever one night. Yesterday, June 18, I was in the backyard and my throat became so itchy that I started to cough continuously. I noticed that there were a lot of pollens (cotton-like) floating in the air. I had a skin allergy test but everything was normal. I have no food allergy. If I am allergic to pollen, what type of pollen is it at this time of the year-- June?