Luckily, the CT scan would have ruled out the most serious things that could be wrong (but double check with the neurologist when you see him).

It's the headache and memory loss with the joint pain that seems like it would be unusual. My main advice would be to make a list of questions you have for the neurologist when you see him and make sure they are answered to your satisfaction. Sometimes one symptom will throw off the doctor's diagnosis, so if he has trouble coming up with ideas, ask what would he think if he takes the headache out of the mix or the joint pain (only one at a time). Ask if there is anything that springs to mind and then ask if it is possible to have the symptom that was taken out with that diagnosis.

For example (just an example), if we took out the headache, then he might think of MS or something, but since MS doesn't normally present with a headache, he may not think of it. He may be focusing on that symptom too much. Then if he asks himself if headache isn't possible with MS, he may say yes. I hope that's clearer. Again, just an example.

I hope your appointment goes well. I hope you get some answers soon. I know what it's like to have something wrong without anyone being able to tell you what it is. Just don't be afraid to get a second opinion or even change doctors if one sounds like they are at a loss.

Good luck.

I agree with MyrahU. I think you should consider her suggestions.

Since I have gone for the sinus surgery and that's the only disease that has seriously bothered me throughout my life, I have some reasonably good knowledge on sinusitis. My ENT doctor told me he has handled a few cases in his 17 years of medical career where the CT scan images of the patient's para nasal sinuses did not show any abnormalities at all. However, when checked through something called a "sinonasal endoscopy", something was found that made the patient's "unexplained" headache "explained" to the doctor . The doctor, with the help of the endoscope, was able to see that there was pus in the "sphenoid" sinus which the CT scan could not catch! Having said so, it is RARE for the CT scan to miss an infection but NOT impossible. Ask your ENT doctor to check the conditions of your sinuses with the help of an endoscope.

If the ENT doctor rules out sinusitis (and since you say the CT scan and blood reports show no abnormalities), you could be having a tension headache. The headache, memory loss, concentration, foggy thinking, muscle and joint pain, and extreme fatigue could also be a symptoms of depression or other mental disorder. Is your life style such that you are constantly under stressful situation all the time?

I would have liked to suggest a few things more but I would like to know what your neurologist says. If you find my advice useful, let me know about what your neurologists suggested you and I will tell you more about tension headache. For the moment, please knoe that there are simply too many people who confuse a sinus headache with something serious. Do NOT miss your appointment with the neurologist.

have you ever looked at possibility of having "candida"?