Welcome to health care magic! I have read our question, the important aspects are: your on-going exams, high grade fever, muscular pain, abdominal cramps, headaches, nausea and night shivering. Your blood counts are normal. You have not told what medicine you have been taking in the query. As you are having exams, had I been your treating doctor, I would have gone for an injectable antibiotic (like cefotaxime or other cephalosporin, they are very useful in such cases)and antiemetic, this would control the illness faster compared to oral medicines. Antiemetic like (metocloperamide) will prevent nausea and vomiting and you will be able to eat. It is not clear that when you got your blood counts done, but it is not bad to repeat them again, and also get an ultra sound abdomen because you have severe cramps. I strongly feel that you get a malarial parasite test and typhoid test (WIDAL) done, to rule them out. Continue to eat something and take adequate water, in sips (may be electrol) to maintain hydration. if temperature goes high, go for cold compress over forehead and limbs, this will help in reducing fever. Hope this answer helps you in getting better Please feel free to ask if you have more queries. Dr. Manisha Gopal