Like you I have had problems of weight loss. This is the second bout for me in 2 years. I am having problems with loss of appetite. I have not had surgery yet. The PTH just keeps going up and the symptoms are getting worse especially the ability to concentrate and problems with sleeping.
The last time this happened to me my clothes became so loose I had to give up wearing some of them.
I have to force myself to eat high calorie foods like eggs, gluten free bread and potatoes.
Although these glands are so small they sure can cause a lot of problems.