I've been concerned about a lymph node that has been on the right side of my neck for about 9 months now. The size hasn't changed at all and what concerns me is that the node has a throbbing pain every so often. It comes and goes every week or two and usually lasts for about a day. Its like a shooting pain that gradually comes in for a second or two and then fades away and It'll come back every 10-20 mins.
I've done a needle biopsy twice and both times have come back showing normal cell growth, which i guess means its not malignant. I've also done a chest x-ray which passed (not sure what that meant), a CT scan and an MRI which both confirmed its a lymph node. I believe the exact term that was used was lymphoid infiltrate. At the moment, my doctor said to just keep an eye on it and to contact him if it grows any bigger or becomes more painful. I'm suppose to see him again in 2 months for a checkup.
Any idea what this could be? Could it be an early sign of lymphoma or something related to it? Another thing which might be related is that i contracted shingles a couple months ago which was supposedly rare at my age (im 23 years old), so that kinda freaked me out. Aside from that, i feel pretty healthy and i don't have any other symntoms which might suggest lymphoma.
Any help would be greatly appreciated!