Hello and welcome back! We are fellow patients here, not docs or nutritionists, but the 700 cal/day sounds like it would be *very* difficult for you to get enough nutrition to function on a daily basis!
That is good that you have an appointment with Mayo - hopefully, they will be able to shed some light on the issues you are experiencing.
TSH alone is fine for patients who are stable and feeling well, but with your symptoms, it would certainly make sense to take a look at Free T4 and T3.
Finally, if it was me, I would not include my e-mail in my signature. Although you have to be a member to post here, *anyone* can view the posts. I would hate for a spammer to get a hold of your e-mail! You can always change your signature to say “feel free to PM me.” You can send a private message to another user by clicking the PM option in the menu in the top right-hand corner of the screen or by clicking the PM option when you are looking at one of the person’s posts (located to the left of the post, below the screen name. When you send the private message, a notification will be sent to the person at the e-mail address they used to sign up for the forum. They will need to log in to the forum to view your message.
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