Is it true that once HIV antibodies appear, they are constantly there 24/7?

(Obviously until the Virus completely takes over and they decrease drastically..)

Yes, once HIV antibodies appear, they are present in the blood throughout the day and can be generally detected in the blood for the rest of the person's life.

HIV antibody tests (Elisa tests followed by Western Blot tests) look for up to ten different antibodies which your body makes in response to ten different parts of the HIV virus.

Very early in the course of the infection there may be only three or four types of HIV antibodies, but as the weeks go on most people make at least half a dozen different types, and some people make all ten.

Very late in the course of the disease AIDS the immune system can get so damaged that the body stops making all the types of HIV antibodies that it was making earlier, but there are usually enough types detectable to show that HIV is present.

HIV is the human immunodeficiency virus that causes Aids with HIV the virus lives and multiplies primarily in the white blood cells immune cells protect us from diseases with progressive loss of a specific type immune cell the T helpers or the CD4 cells.
The test we all do is to see if there are any antibodies present in the fluids in a body. (being produced).
AIDS: Acquired Immune Deficiency Syndrome!
Most times it takes weeks for any antibodies to be present in a body to be detected by any tests right now 95 % will show up on tests as soon as 3 months after an infection then again another test by 6 months to be sure the antibodies are being produced since some cases wont show any antibodies till 6 months as well.
HIV infection is a long term infection till a vaccine is made to stop this or a cure is produced or found.
After a person becomes infected the body FIGHTS this with all it has to stop it and to protect the infected person.A person may look and feel ok but this is working on a persons lymph nodes (a body"s castle of immune system) Most that are being produced are useless against this virus ( by Dr David Sondra's own words)

Yes once a person is infected, the body tries to fight the HIV, which it does for a while, but the HIV will take over and decrease the T-Cell count, IF a person with HIV is on medications it will help the antibodies increase to fight the HIV. But yes they are there 24/7

Yes.

No, they get 15 min breaks every four hours and 1 hour for lunch