I have trigeminal neuralgia and that will cause a low grade fever with swelling and pain on one side of my head.

You should talk with your doc about it.

I do get low fevers, usually around 100.5
happens when I Flare, or simply when I have done very much thru out the day...I call those "Mini Flares".

I have had swelling, but in the BACK of my neck, Usually the right side...which is ALSO the side that bothers me the most..
as far as the trigeminal Neuralgia...Unless it hits me in my eye, I really do not swell much...maybe a bit from the jaw to the ear...or maybe it is so tender it just Feels swollen, I don't really know..but TN is so Incredibaly Painful {for most, tho not all}...that it will usually Force you into seek Medical Treament..she really didn't mention anything about a severe pain on one side of the head...

the Lymph nodes in the back of my neck do become inflamed...making me Feel very sick...heat applied to those will make you feel alot better...and coolness to reduce any swelling, I alternate back and forth when it gets real bad..

Hugs to you !!

I get those same symptoms, except for the swelling, I don't have that. I run a low grade fever, and my lymph nodes in my throat area hurt, too. I also get a slight sore throat, too.

I forgot to add, this usually happens before a bad flare. My Dr. doesn't know what causes it, but it sounds like CFS symptoms.

I have polymyalgia rheumatica, an RA related illness, along with FMS. It is commong for folks with RA illnesses to run a fever. I get terrible fatigue, increased pain in my hands, hips and shoulders, and a weird feeling in my eye sockets as well.

I would happily discuss it with a doc but, alas, I have no insurance and am FAR too wealthy to get state benefits (haha). As long as I'm not in danger of kicking and others are having similar symptoms, I can just chalk it up.

See if there is a free state health clinic in your area or in a neighboring city near you.
I know large cities tend to have them, if you live in the city or close by.

Primary signs and symptoms of chronic fatigue as quoted from the Mayo clinic are as follows.....

In addition to persistent fatigue, not caused by other known medical conditions, chronic fatigue syndrome has eight possible primary signs and symptoms. Chronic fatigue syndrome symptoms include:

Loss of memory or concentration
Sore throat
Painful and mildly enlarged lymph nodes in your neck or armpits
Unexplained muscle soreness
Pain that moves from one joint to another without swelling or redness
Headache of a new type, pattern or severity
Sleep disturbance
Extreme exhaustion lasting more than 24 hours after physical or mental exercise
maybe this will help.

Many illnesses mask other illnesses which is why docs need to do blood testing to find out what is what.

What's weird is about once a month I wake up with shaking chills and a fever of 101.6 to 102.8 and it usually continues to climb that day before breaking and then by that evening I'm fine. The first few times I mentioned it to my doctor he said I must have had the flu but how many 24-hour flu's can a person have, and it is about once a month. I've been keeping logs of it now so the next time I see him I can show him what was happening.