Losing too much weight can cause you harm ?

It's not entirely clear what you mean by "excess health drops," as the concept of "excess health" is not a typical term used in healthcare or medicine. However, I'll do my best to provide a general answer. 

If you're referring to a situation where someone's health declines suddenly or significantly, this could have a variety of causes and consequences depending on the specific condition and severity of the decline. Some possible consequences could include:

1. Symptoms: Depending on the cause of the decline in health, the person may experience a range of symptoms, such as pain, weakness, fatigue, fever, or difficulty breathing.

2. Impaired function: If the decline in health is severe enough, it could impair the person's ability to carry out daily activities or even require hospitalization.

3. Complications: In some cases, a decline in health could lead to complications such as infections, organ failure, or other serious medical issues.

4. Mortality: In extreme cases, a sudden or significant decline in health could lead to death.

It's important to note that the best course of action for someone experiencing a decline in health will depend on the specific situation and cause of the decline. If you or someone you know is experiencing a sudden or significant decline in health, it's best to seek medical attention promptly to determine the cause and appropriate treatment.