What would make an otherwise normal woman start to sweat a lot under her arms?

There are a few reasons why an otherwise normal woman might start to sweat a lot under her arms. Some of these reasons include:

- Hormonal changes: Hormonal changes, such as those that occur during pregnancy or menopause, can cause an increase in sweating.

- Medications: Certain medications, such as antidepressants and blood pressure medications, can also cause sweating as a side effect.

- Medical conditions: Some medical conditions, such as hyperthyroidism and diabetes, can also lead to increased sweating.

- Stress: Stress can trigger the release of hormones that can cause sweating.

- Spicy food: Eating spicy food can also cause sweating.

- Genetics: Some people are simply more prone to sweating than others.