Industrial Robotics Market to Reach US$44.48 Billion by 2020 Owing to Rising Popularity of Industrial Automation. A recently released report from Transparency Market Research (TMR) forecasts that the global industrial robotics market will grow at a CAGR of 6.2% between 2014 and 2020.
Cluster headache: Symptoms. Symptoms of a cluster headache include a severe and recurring headache that occurs on one side of the head and is often focused in and around the eye. Cluster headaches generally start suddenly and occur in clusters of episodes that recur over days or weeks. Each episode can last from 15 minutes to several hours.
Cluster Headache Symptoms and Treatments. Headaches and Migraines. Cluster headaches may be the most painful type of headache you can have â and if you've ever had them, you know that's true. Most commonly, you'll awaken in the middle of the night with severe pain on one side of your face, centered over your eye.