Is it normal to have zero appetite

Maybe you are depressed and not acknowledging it.

I was the same, I started to have something simple in the morning such as a banana then go for a walk, 1-3 hours I usually do personally, but even a 30min-hour walk would do, it helps to get your metabolism going.

I don't know how common that is but I think salad would be easy to eat when someone is not hungry. With the heavy lifting, this looks very unhealthy.

Do you drink a lot of coffee? The caffeine might be suppressing your appetite. Are you under a lot of stress? Are you depressed and unaware of it? Just incase, I think it would be a good idea if you were to go see a doctor. Good Luck!

Sometimes our body is trying to tell us something... Are you stressed? Depressed about something? when I feel a bit low about life, my appetite for everything is effected by the feeling. If its temporary I wouldn't worry abut it. If it's a long term pattern you're experiencing I would advise you talk to your doctor to at least get a blood test to check your levels are all healthy.

Marijuana. Seriously.