You might be experiencing difficulty in sleeping. Sleeping only for 2-3 hours is not enough. Do you feel tired, irritable, or have difficulty concentrating during the day? It may be due to stress, caffeine, or electronic devices before going to bed. Try relaxation before bedtime, reducing caffeine intake, and creating a comfortable sleeping space. 

These could be symptoms caused by a strained or tense muscle. Make sure to notice any activities which make the pain worse. Applying heat or gently massaging the area might help relieve the discomfort. If it doesn’t get better or gets worse, please see a doctor.

It sounds like you may be dealing with a viral infection that’s given you a high fever, headache, and weakness. Viruses can really knock you out. Keep in mind to drink lots of water and get some rest. Taking dolo650 for fever is good. If your fever doesn’t go down or if it becomes hard to breathe or you feel pain in your chest, then it’s time to see a doctor or go to the hospital.