Im a 16 years old with swollen lymph nodes on the neck. Its 3 or more lymph nodes; the bigger one is about 2,3 cm and the smallest is less then 1 cm. One of them feel hard and unmovable(its not the big one). The others are movable but all of them are painless and hard to notice from the outside. I do get a stiff neck from time to time, it feel like the veins on my neck are going to explode. I went to the doctor because i had a cold (i found this swollen nodes 2nd day of the cold) he examined my whole body and said its common to have swollen lymph nodes when you get a cold or if you have a chronic sinus infection which i have since 4 years. I already had a swollen node before on the right side of my neck which was large and hard and painless a few years ago, it stayed swollen for a long time and went back to normal eventually. I dint have any symptoms such as: Night sweats , itching. I do feel so tired and i get needles feeling in my left hand and my left leg/feet is kind of heavy/numb and i lost my appetite maybe because im too anxieted about this symptoms, but i do sleep well. My doctor put me on Amoxicillin for 5 days (1500 mg each day) and an other Allergypills and he ordered a blood workout. Could this be cancer ? If not, please go in details..