Health is a much broader term and will vary from individual to individual.
People may describe themselves as healthy but that will depend on your description of what you feel is healthy.
Having an average or below average body mass index (BMI) may classify you as being healthy.
Keeping your body fat percentage below a certain number may also assist you in being healthy.
Health can include being free from disease and injury.
Again, health has a much broader outlook and can vary.