As the pressure increases, the eardrum may break open (rupture). Damage to the eardrum can also occur from: 1  A very loud noise close to the ear, such as a gunshot. 2  A rapid change in ear pressure, which may occur when flying, scuba diving, or driving in the mountains.  Foreign objects in the ear.
Constant headache: Introduction. Constant headache: Constant headache is a steady and continual discomfort in the head. See detailed information below for a list of 9 causes of Constant headache, Symptom Checker, including diseases and drug side effect causes. Â» Review Causes of Constant headache: Causes | Symptom Checker Â».
Tension headaches. Tension headaches are the most common type of headache and are what we think of as normal, everyday headaches. They feel like a constant ache that affects both sides of the head, as though a tight band is stretched around it.A tension headache normally won't be severe enough to prevent you doing everyday activities.They usually last for 30 minutes to several hours, but can last for several days. The exact cause is unclear, but tension headaches have been linked to things such as stress, poor posture, skipping meals and dehydration.ension headaches. Tension headaches are the most common type of headache and are what we think of as normal, everyday headaches. They feel like a constant ache that affects both sides of the head, as though a tight band is stretched around it.