Dear doctor, My wife get her period on 7 March. on first day of period she is facing problem like, nausea, dizziness, headache, abdomen pain, loss of appetite and fever but in fever body temperature is normal ..97. to 97.7 f only, we saw general physician doctors he prescribed medicine...norflox 400, Rablet 20, vertin 16 and cital syrup. After took medicine First 7 days , this problem resolve... headache, dizziness, abdomen pain and nausea. After 7 days doctor prescribed other  medicine..Niftas 100, bilashine tablet, Aristozyme syrup, otrivin nasal drop and pan 80. by taking all these medicines.. just starting to get a little hungry now.. but If she starts walking a little too much, she starts feeling lethargic and feverish and coldness is felt in the body... What could be the reason??