I'm sorry to hear that your fever and body pain are making it hard for you to sleep. Taking a medication like Metacin Tablet, which is an analgesic (painkiller) and antipyretic (fever reducer), may help relieve your symptoms by reducing both pain and fever.

• Make sure to follow the dosage instructions provided by your doctor or the medication packaging.
• Stay well hydrated and rest as much as possible.
• If you experience side effects such as nausea, stomach pain, or dark-colored urine, or if your symptoms persist or worsen, please consult a doctor promptly.
• Avoid alcohol while taking this medication, as it can increase the risk of liver damage.

If your fever remains high, pain is severe, or you develop other symptoms like difficulty breathing or confusion, seek urgent medical care. Otherwise, consulting a general physician or a specialist in internal medicine would be advisable to evaluate your condition further.To narrow down potential causes, we will need some more information.I understand you have fever and body pain that's preventing you from sleeping. Could you please tell me your age and gender?