An older persons immune system and circulation is not as good as a younger persons.
You could have a urine infection. I would go and see your doctor about it as you may need antibiotics
A person aged 100 years is commonly referred to as a centenarian.
A person Aged 90 to 99 years called a Nonagenarian.
centenarian
There isn't a particular name for someone between in 50-60 but someone over 60 is usually called an OAP (Old Aged Person).
Such a person is a centenarian.
You must be 5'2 higher.
Not completely old, just older. Middle aged is around 45 because most people only live to around 80. 60 is defiantly higher up.
old.
centurian
A centenarian
It varies on the type of person.