Fever (99. 7 F) and Dry cough.

Im a 21 year old guy.I'm having fever(99.7 F) and dry cough. Iam also feeling little weak and I was having head ache earlier but after having paracetamol I'm not having headaches any more. I have no difficulty in breathing and I'm able to taste food as well.I have been sick for about 20 hours now. Recently there was a weather change from hot to cold maybe that's why I have this fever. I never go outside in public and I do stay away from people most of the time. 1)Should I be concerned regarding this? 2)Do I need to do a covid test or just stay at home and closely see my symptoms? 3)What are the things that I should avoid doing this period? 4)In what case do I need to go the hospital? 5)In case if I go to the hospital what are the different tests that I should do?