Two days ago I had flu like symptoms such as headaches, coughing, muscle aches, sore throat etc. And then when I woke up yesterday it felt as though I was left with a slight cough and a sore throat but last night before I went to sleep I started coughing a lot. It was a dry cough and it happened every time I woke up in the middle of the night. Also, I suddenly had night sweats and I m quite worried because this started suddenly. Help? Thanks!