 [ Symptoms ] is it normal to lose 5 pounds in a week without changing eating or excersize habits  i have been feeling really sick lately i have been shaky lightheaded confused urinating about every hour and i have been having chest pains i weigh myself about every week and i have always stayed between 127 130 pounds when i got on the scale this week i noticed i am about 124 i have been eating the same amount of food at the same time of day and its always a balanced healthy meal my exercise habits have also been the same is there something wrong with me [ Disease ] you could have lost it all in water weight if you continue feeling bad and continue losing weight see a doctor as soon as you can it could be the warning signs of a problem with your thyroid diabetes or a whole host of other things