Welcome to the MicroTim â¢ Altimeter Website !! Why use a MicroTim Precision Digital Barometric Altimeter / Barometer / VSI? MicroTim is FASTER and MORE ACCURATE than any typical GPS unit or wristwatch altimeter. Â· Lightweight and portable. Easily moves from truck to backpack to recreational vehicle. Dimensions 3âx1.5âx3/4â. Weighs less than 2 oz. Â· Large Display (3/8â tall numbers).
This type of headache occurs while sleeping and is also referred to as alarm clock headaches because they occur at the same time every night. Causes range from changes in small vessels in the cerebrovascular system to previous head injuries. This type of headache is more common in people over the age of 50.
1 Migraine, a type of tension headache, often has people waking up with severe pain in the head and nausea, in the morning. 2  It can also be caused, if a person clenches or grinds his teeth while sleeping. Holding the urine for a long time, and not relieving oneself in the night can result in a person waking up with a headache in the morning. 2  If a person has had alcohol in excess the previous night, it can lead to a hangover, and can even make a person wake up with an aching head in the middle of the night.