What are the keynote symptoms of nux vomica?

The keynote symptoms of nux vomica are:

1. Oversensitivity to external stimuli: People who need nux vomica are often highly sensitive to noise, light, touch, and other external stimuli. They may feel easily irritated and overwhelmed by their environment.

2. Irritability and anger: Nux vomica individuals are known for their irritability and anger. They may be quick to react, often over small matters, and may lash out at others. They may also feel bitter and resentful.

3. Digestive issues: Nux vomica is often used to treat a variety of digestive issues, including nausea, vomiting, diarrhea, and constipation. People who need this remedy may also experience heartburn, indigestion, and gas.

4. Headaches: Headaches are a common symptom of nux vomica. They are often described as being intense and throbbing, and may be accompanied by nausea and vomiting.

5. Insomnia: People who need nux vomica may have difficulty falling asleep and staying asleep. They may wake up feeling unrested and irritable.

6. Muscle tension: Nux vomica can also be used to treat muscle tension and stiffness. People who need this remedy may experience pain and tightness in their muscles, especially in the neck, shoulders, and back.

7. Overindulgence: Nux vomica is often used to treat the effects of overindulgence, such as alcohol, food, or stimulants. People who need this remedy may feel hungover or sluggish after overdoing it.