A person who is always down can be called a pessimist or the person may be depressed. Chronic depression is a matter for a professional to deal with. A pessimist is not sick, they're just annoying.
you downbeat at the music show
downbeat
a white person
A restless person.
Lucky.
The cast of Sir Tropical Downbeat - 1990 includes: Lionel Young as Sir Tropical Downbeat
A Critic
Wife..
Happy or a very lighthearted person.
a person who is always in a good mood is called jolly, or enthusiastic
Punctual. Employed.
Drummer.