The Hub and Spigot are two types of fitting on either end of a pipe. At one end you have the Hub (Socket) fitting; which is a female end of a fitting designed to accept pipe or a SPIGOT connector. At the other end you have the Spigot fitting; which is a male end of a fitting designed to be used inside another fittings Socket (or Hub) end.
Most headaches are tension headaches. These headaches tend to happen again and again, especially if you are under stress. They are not usually a sign of something serious. But they can be very painful and hard to live with. Tension headaches can last from 30 minutes to 7 days. If you have a headache on 15 or more days each month over a 3-month period, you may have chronic tension headaches. This type of headache can lead to stress and depression, which in turn can lead to more headaches.
MIGRAINE HEADACHES. Migraine headaches are a type of headache that causes moderate to severe pain that is worsened by light, noise, and motion. Some people also experience nausea and vomiting. Migraine headaches typically last for a few hours, but may last for as long as three days. Migraines are discussed in detail in a separate article.