I'm awaiting an appointment with the endocrinologist as I have recurrent thyrotoxicosis. What I'm confused about are some of the symptoms. For instance, I'm a bit overweight and am going to Slimming World, but losing very little (just a half pound a week) despite eating very healthily. As I understand it, thyrotoxicosis should be making me lose weight? I have a swollen thyroid, itching, dry eyes, palpitations, insomnia, very thirsty so consequently up and down all night, tired but on the go all the time, and terrible sweating, particularly at night. My question is, could it be the thyrotoxicosis preventing the weight loss?