In North America, the DSM-IV or DSM-5 criteria are often used for diagnosis, while European countries usually use the ICD-10. With the DSM-IV criteria a diagnosis of ADHD is 3â4 times more likely than with the ICD-10 criteria. It is classified as neurodevelopmental psychiatric disorder.
In orthostatic hypotension, the blood pressure drops when the body is in an upright standing position, as compared to a reclining position. Sometimes the sudden dip causes a brief dizzy spell or head rush. In severe cases it may cause a person to faint. âSometimes people can have it and not feel a thing,â Jones says.n orthostatic hypotension, the blood pressure drops when the body is in an upright standing position, as compared to a reclining position. Sometimes the sudden dip causes a brief dizzy spell or head rush. In severe cases it may cause a person to faint. âSometimes people can have it and not feel a thing,â Jones says.
You can have high blood pressure, or hypertension, and still feel just fine. Thatâs because high blood pressure often does not cause signs of illness that you can see or feel.But, high blood pressure, sometimes called âthe silent killer,â is very common in older people and a major health problem.f your systolic blood pressure is less than 90, you may have low blood pressure. You may feel lightheaded, dizzy, or even faint. Low blood pressure, or hypotension, can be caused by not drinking enough liquids (dehydration), blood loss, or too much medication.