Hi and thanks for this query. I am sorry about what you are experiencing. TSH normal values vary slightly from one lab to the other. If your doctor said it was normal, then i believe him. The symptoms you have cited make the diagnosis of under treated hypothyroidism very likely. It is a good thing that you are going in for blood work up and a physical. Thyroid hormones supplementation dosages vary fro one patient to another. Even the same patient may need the doses t be reviewed several times in the course of his/her treatment. A simple adjustment will correct the identified problem. Hysterectomy per se cannot be directly responsible. However, may be some other drugs and associated lifestyle changes caused by this procedure can be responsible. I hope this answers your question. I wish you good health. Also, feel free to come back for more answers. Dr. Ditah