Is It throat cancer? PLZ HELP

a couple days before christmas i noticed a swollen lymph node on under my neck it was painful to the touch i went online and read about neck lymph nodes and came across throat cancer i read the symptoms and then started thinking if i had each one and i had a slight felling as if there were something in the back of my throat. Time went by and i didnt notice any of those symptoms agian until a couple days ago went i started thinking about throat cancer then i felt my neck and the lymph node is now half the size it was but i can still fell it and the felling in my throat came back PLZ help i am realy worried

go see a specialist. cause it could be cancer and if it is the longer u sit on your hands the less likely you will survive