@mri8191 Beth, are you seeing an endocrinologist? If not then please make an appointment with a really good one. Thyroid issues are very often genetic and if there are members of your family with issues then it is quite probable that you may also have them. I have heard that the TSH test is not always accurate and there are other tests that can be done. Do you know if you have other tests? I presume you have had a TSH test.
I hope you can move forward in a positive direction and get some resolution. You should not have to be dealing with this, and if you are not eating much but gaining weight, that is definitely an indication of some problem. I hope you will let us know how you are doing.