Conversation: The conversation between human and AI assistant.
[|Human|] I am on synthroid.  75mg.  Had a hysterectomy in April for uterine cancer.  In the past couple of weeks, Ive started feeling very fatigued and lightheaded.  Also feeling very depressed/sad.  My TSH was 4.15 a year ago (I thought this was too high, but my dr said it was still in normal range).  I think now my TSH must be way too high.  Possibly the hysterectomy has also affected it?  I am going for blood work tomorrow and a physical the following week.  What do you think?
[|AI|]  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 for 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 Chat Doctor. I hope this answers your question. I wish you good health. Also, feel free to come back for more answers.