Hi. About two weeks ago, my doctor said I had what looked like strep throat. She prescribed some antibiotics and I was on my way. However, leading up to then and since then, I have had a persistent case of muscle fatigue. This week, it was accompanied by a severe cough, sore throat, headache, a minor stomach ache, and the general sick feeling. What do I (most likely) have and what is the best way to treat it?