So many people seem to have had this sore throat/cough/exhausted/no appetite bug, that drags on for weeks. One of our GP's advised me to take vitamin C and zinc, in combination form. She said the research is clear, it helps support the immune system. I bought one from Boots, it wasn't expensive and I took it for over a year, remaining bug free. Inevitably I forgot to replace it and got the horror bug I moaned about on another thread.
It may be worth a try Jing - hope you're soon feeling more the thing. As for that weight loss, when I began to recover all my clothes were lose, not any more they aren't 