Troubleshooting a refrigerator that runs continuously requires an understanding of how the refrigerator works. By definition, a refrigerator is one of the few appliances within your home that has to run on a continuous basis.
Severe pain in the head, behind the eyes or ears, is usually caused due to sinusitis. Among the various types of sinusitis, sphenoid sinusitis can cause intense headaches, specially behind the eyes.Whereas, frontal and ethmoid sinusitis can cause severe pain in the head, behind the ears or eyes.evere pain in the head, behind the eyes or ears, is usually caused due to sinusitis. Among the various types of sinusitis, sphenoid sinusitis can cause intense headaches, specially behind the eyes.
Mild Headache Causes. Headache is caused by irritation or injury to pain-sensing structures of the head. The structures that can sense pain include the scalp, forehead, top of head, the muscles of the neck and head, major arteries and veins in the head, the sinuses, and the tissues that surround the brain.