I've been given it for pelvic inflammation and have taken it for 4 days so far. I've just read in the side effects bit of the leaflet that a sore throat may indicate a problem with red blood cells. I do have quite a sore throat that started last night, but I work with the general public and am around virus ridden people all day, plus I'm a little congested at the back of my throat with catarrh. Would you worry?