Thank you for all of your great answers. Today a little better. I still get hot flashes when I'm in motion at work and a headache. But if I chug water I feel it helps. I'll give it until Monday to see how I feel. (:
Depending on your immune system it sometimes does take a while for the flu to go away, but if its a virus there is nothing that can be done, it will leave when it is ready. Meanwhile be sure to be intaking plenty of fluids, supplements Vit C definately. Not sure how you feel about Naturopathic doctors but they provide IV drips for symptoms you are having to get your immune system back to work. I just love them, they always help and depending on the symptoms they will give you exactly what your body is missing. Are a little pricey but worth it in the end.
Try to get bloodwork and see a doctor if it still persists.
PS I don't have any cold like symptoms which I always get with the flu. But my body sometimes feels weak.