Do i need to test for covid19, symptoms i experienced is nausea, headache, body ache and fever cold & warm?

Yes: All the symptoms you describe can be part of coronavirus. They also can be part of many, many other viruses (including Influenza). The only way you can tell the difference is to get a test (Nasal or Throat, PCR) Hope you feel better soon

COVID 19 testing: COVID 19 Sx's may include fever, cough, feeling tired, shortness of breath, muscle aches, headache, sore throat, chills, chest pain, nasal congestion, loss of taste or smell, nausea, vomiting, diarrhea. Can't say what the cause of your symptoms is, but COVID 19 is certainly high on the list.