Hello, our daughter has been traveling for three months now and has experienced the following symptoms the past week (note that she was in south east Asia a month ago) : chills, night sweats, headache, some loss of appetite, and some weakness, as well as difficulty sleeping (though that might be due to the other symptoms and not a symptom itself). When she takes ibuprofen she feels better, at least good enough to go site-seeing. Thank you.