It sounds uncomfortable to have back pain along with fever and headache after dancing. These symptoms could indicate muscle strain or possibly an infection.

• You may consider taking a medication like Aceclo MR Tablet, which combines a pain reliever, fever reducer, and muscle relaxant, to help ease your symptoms. However, this should only be taken if you have no contraindications such as liver or kidney issues, pregnancy, or allergies to its components.
• Rest and avoid strenuous activity to allow your muscles to recover.
• Stay well hydrated and monitor your temperature.

If your fever worsens, the pain becomes severe, or you develop additional symptoms like difficulty breathing or weakness, please seek immediate care. Otherwise, consult a general physician or a specialist in internal medicine to evaluate your symptoms and guide appropriate treatment. If you want, I can explain how the medication works or what warning signs to watch for.To narrow down potential causes, we will need some more information.I understand you're experiencing back pain, fever, and a headache after dancing. To give you the best advice, could you please tell me your age and gender?