I am having night sweats. I have had a thyroidectomy but replacement synthroid has worked perfectly for years. All of a sudden my doctor reduced the level, then another test and she increased it . This is when the problem started. Now I am drying to thnk of anything that might be causing the sweats. Will a banana cause a problem, sweating with an overload of potassium? If I had Iodine to my diet may that help? What do you suggest?