swollen lymph node under my jaw?

hello, i had a sudden swollen lymph node under my right side of my neck near my adams apple. you can see its swollen to look at and is about the size of a cream egg it gets really painfull sometimes when i eat especially crisps and things what make my tastebuds go, i have been on antibiotics for 3 days now but it only seems to feels painless when im sleeping but as soon as i eat swallow talk throughout the day it becomes more painfull, i do feel run down somedays and iv'e been taking cocodamile for the pain as antibiotics dont take away the pain, iv'e just started to have cramps in my stomach this morning and diarrhea which maybe because of the tablets iv'e been taking. but im worried that the lymph node is never going to go down as it feels constant in my neck and i get the odd twinge around the area in pain and am just worried, could anyone give me an insight of when i should see my gp again if this doesn't die down in the coming days please? thankyou.

Hi do u still have this?  I can feel a few of my nodes around neck and jaw doctors tell me it's nothing been there about 6 7 months now....  I also can feel my partners a couple 

hi thanks for reply , yes i do still have this but its gone down about 20% in size as iv'e just finished my antibiotics and the swelling has gone considerably. its been 12 days since i noticed it and iv'e felt rough somedays and now feel slightly better so must be a good sign but i have a pain in my ear and it hurts when i stick my finger in so i still am going to see my gp monday morning just to be safe.

Hiya how is ur lymth node problem