In 2014, the Institution of Chemical Engineers Salary Survey reported the average salary for a chemical engineer in the UK was Â£55,500, with a starting salary for a graduate averaging Â£30,000.
Brain Tumor. Rarely is a brain tumor the cause of headache. Headache can be either a late or early symptom of a brain tumor, depending on the location of the tumor. A constant, progressively increasing pain or a change in the character of headache pain may alert the physician to this occurrence.
There are three main causes for primary headaches: 1  Migraine-Migraine headaches can be caused by reduced blood flow to various areas of the cerebral cortex. 2  Symptoms of migraines include sensitivity to light and noise, nausea, vomiting and intense throbbing pain that is usually on one side of the head.