So I’m like allergic to pollen and any of that stuff and the other day I was outside for a couple hours and now I got slightly swollen lymph nodes, a dry cough and some sinus pressure and headaches at times and it’s making my ears itch at times could this be my hayfever? I was near some grass and trees. For got to say at times my eye will tear up

Can someone help me out? And if this is hay fever could someone recommend things to help with it? Thank youuu