I have had a lump in the left side of my neck & had breast cancer 4.5 years ago. What could it be ?
Hi my name is Barb I have had a lump in the left side of my neck for quite some time now. sometimes it causes headaches and other times it is just there. I can feel it sometimes but other times I really have to search for it. I have had breast cancer 4.5 years ago but have been all clear since can you tell me what this could be.