There are several prior posts that give more info and insight into DD's problems. Here is the link.
http://www.medhelp.org/posts/Thyroid-Disorders/TSH-Results--Need-Advice-Help-Understanding/show/1488995?personal_page_id=1681982#post_6767219
In my previous replies, I tried to explain that you should not be focusing on TSH. Trying to use TSH as a diagnostic by which to medicate a thyroid patient just doesn't work, as many other members can tell you. I have been taking a full daily replacement amount for about 30 years. During that time my TSH has been about .05, with no hyper symptoms. In fact I had lingering hypo symptoms, somewhat like you, until I learned bout the importance of Free T3 on the Forum and got my meds changed to Armour. Now my FT3 is in the upper third of the range and my FT4 is around midpoint and I feel best ever.
After having 90 % of your thyroid function removed, 100 mcg of T4 daily doesn't sound like anywhere near a daily replacement amount. In addition, your symptoms sound like you are still hypo. It would be far better if you had a FT3 test rather than total T3, but even your TT3 is low in the range, which is further indication of being hypo.
I really believe that you need to start with testing for Free T3 and Free T4. Since hypo patients often have deficiencies in other areas, sometime soon you should be tested for Vitamin A, D, B12, iron/ferritin, and selenium. The most important thing I think you need is a good thyroid doctor. By that I mean one that will treat you clinically by testing and adjusting Free T3 and Free T4 levels as necessary to relieve symptoms, without being constrained by resultant TSH levels. Symptom relief should be all important to you, not test results. Test results are valuable mainly as indicators during diagnosis, and then to monitor FT3 and FT4 levels as meds are increased toward symptom relief.
If you want to be more assured about this approach, this is a good link about clinical treatment. It is a letter written by a good thyroid doctor for patients that he is consulting with from a distance. The letter is sent to the PCP of the patient, to help guide treatment.
http://hormonerestoration.com/files/ThyroidPMD.pdf