There's a fair amount to unpack in that definition. First, interdependence. If there is no interdependence between parties,there is not a conflict - it would be something else such as a competition, an argument*, or a contest, for instance.
Headache Location. Headache refers to different locations of discomfort or pain in the head. Generalized headache is pain felt on the entire head, patients describe this headache as halo type around the head or a band running around the head. There are some cases that the exact location of the headache is difficult to identify. But, how about the other location of the headaches mean? Front of the head : Tension headache; Eye strain
A headache is considered primary when it is not caused by another medical condition or disease. Most primary headaches fall into three main types: tension-type, migraine, and cluster headaches. Tension-type headache is the most common type of primary headache. Headaches can be caused by problems in the interaction of chemicals in the brain, nerve pathways, and blood vessels.