Hi,
Maybe it's due to unresolved Anxiety or a sideeffect of medication. She needs evaluation.
Psychological disorders recovers better with medications and psychotherapy (counselling, CBT, relaxation therapy, talk therapy etc)
Next Steps
Talk to your treating Psychiatrist, if you not satisfied take a second opinion
Health Tips
Tips to overcome Anxiety and Low Mood
1 Learn relaxation techniques like slow deep diaphragmatic breathing, progressive muscle relaxation technique
2. Practice yoga and meditation
3. Practice mindfulness
4. Regular physical exercise
5. Avoid excessive coffee or tea
6. Good balanced diet
7. Good night sleep
8. Quality family time
9. Good social network
10. Keep yourself occupied with work that you love
All the best be happy 💐💐