Sounds like Lyme Disease or Q Fever. Many people with Lyme Disease test negative. Unfortunately most doctors think that a negative blood test excludes Lyme, which it doesn't. People test negative for a variety of reasons, like what strain of the bacteria they have, whether they've been sick more than a few months, and whether you've had any immune suppressing drugs or a coinfection along with Lyme that also suppresses the immune system.
The screening test is wrong up to half of the time. The Western Blot is a better test, but the CDC surveillance criteria (statistical sampling) for the test somehow evolved into an absolute diagnostic tool, which it is not. The best lab for finding it is IGeneX, which uses two strains of the bacteria instead of just one at other labs. You can read on their website about the controversy in the medical field over test interpretation.
I was negative on the screening test and in a spinal fluid test, but positive on the IGeneX Western Blot. However, since I am CDC negative, I don't think any regular doctor would have diagnosed me (I saw 12). It took someone who knew Lyme well to diagnose me and treat me,
Find a Lyme Literate Medical Doctor in your area (LLMD) who is associated with ILADS and knows the disease well and can work her up thoroughly for it. If she does have Lyme, she will not get well without specific antibiotics. High recurring fevers for a year are serious. Pay cash if you have to to get her to a Lyme doc. Now that I know how severe Lyme can become, I would not hesitate to take my own daughter to one if other doctors couldn't find anything.
Yes many children and adults seem to have similar and on the childrens forums we see many similar posts.There have been virus's going around that are reocurring sometimes every few weeks . Allergy symptoms like coughs, scratchy throat, itchy eyes, sneezing a lot sinusitis..my opinion is that its environmental .Good luck