Hello, I read your question carefully and i can understand your concern very well. If i were your treating physician, i would suspect viral infection and i would recommend you to go for few work ups like blood CBC, PS for MP, RBS, creatinine and SGPT. I would have advised you to take antibiotics (like cefixime for 5 to 7days), paracetamol (to control fever and headache), Antihistaminics (like cetrizine) and pantoprazole (for stomach upset). Because most of these medicines are prescription medicines, you can meet your local doctor and confirm it. You can come back to me after all the reports anytime, so i can guide you further. If the condition does not improve or if it gets worse, then you need to further work up to rule out various other causes. Take healthy diet, take proper rest and avoid any kind of strenuous physical or mental work. Don t worry, you will be alright within few days. Hope this will help you and feel free to ask any of your further follow up queries.