The lymph nodes on the back of my neck swell, and they cause me to have nausea, horrible headaches, and the only cure is sleeping it off, which takes about 4-6 hours. I usually crave oranges during this all, and that is all I can eat. They have been happening for about 5 years, started roughly when I was 15.. Doctors have done MRI's, Xrays, and no luck. I have also had several spine surgeries. But they do not appear to affect this. I just want to know if anyone has any idea why. They are usually completely debilitating, I can feel it coming on and within an hour I have to be home in bed. I usually don't puke. But sometimes. The only thing that helps is drastic changes in temperature. Like getting out of a hot bath, or in one. Or walking outside in the snow.