I think I felt weaker and sicker in the beginning of all this. Once I started the antibiotics, my initial symptoms subsided but I did end up with some digestive issues until I got a better grip on that eventually. I have bouts of feeling less well than other days. I work full time still so I rest ahead of time and try to stock-pile energy. LOL! My appetite comes and goes too. I'm naturally thin and tall so I can't afford to lose much weight. I drink high calorie boost shakes every day and that helps a bit.