BeeG’, If you haven’t already done so, you may want to consider sinusitis as a possible culprit.
There may be a chance that a slightly deviated nasal passage, for example, my obstruct oxygen (that acts as a natural antibiotic) from accessing your sinus cavities to the point that bacteria accumulates unchecked in a warm, damp, poorly drained enclosure.
The result of which is an infection that causes intense sinus pressure behind either the left or right eye, or both, and acts like a migraine, accompanied by fever.
Surprisingly, the most intense sinus pain sometimes occurs when antibodies destroy some of the accumulated bacteria in a sinus cavity leaving a painful vacuum or air pressure imbalance.
If this happens to be the case after consulting your doctor, he/she may suggest riding it out with rest and recouping your immune efficiency through proper diet, temporary relief with extra-strength (500mg) aspirin. Or in severe cases prescribe antibiotics to fight the infection or ultimately, corrective day surgery to solve the cause rather than treat the on going headache symptoms.
See a doctor, I’m simply passing on another perspective.
Remember just as when we were Jehovah’s Witnesses and asked the Borg’s local corporate managers (elders) for advice, ‘we got what we paid for’.
Take care, BeeG’.
Flip