Surgery for double vision. Ted

I had surgery on my left eye 3 weeks ago. I still get so tired so quickly. Is this normal?? And my voice is raspy. My thyroid tests are bormal

You have not given us (me at least) enough information to comment.  What was your thyroid diagnosis?  Did you have RAI or surgery or were you treated with Methimazole and what is your treatment now? What are your most current thyroid lab values along with the ranges for normal beside your results?  Please post more information so we can more accurately respond to you.

I was diagnosed with Ted. The surgery was to realign my eye by cutting muscles behind eye. It was in hopes to correct double vision

I understand you have thyroid eye disease but you stated you get tired so quickly and asked "is this normal" and that is not related to TED but to the original thyroid disease.  You still have not provided any information about your original thyroid disease.