I'm 14 years old. Yesterday,when i was laying in the bed & watching movie,my left side of neck started to hurt a little bit. I noticed that my vein,or Lymph node got little bigger on small area of neck and i checked with my hands and there's like a very small circle. Sorry for my english,i'm very scared. :/ No other simptoms,except i had a headache 2 days ago,for about 10 minutes,but this week i didn't slept as usually,every night i slept around 04:00! Appreciate your help,Greets. :(