Truelife, sorry it took me so long to come back and post. I can relate to so many of the symptoms you listed, especially the mind-racing and noise intolerance and brain confusion and anxiety/irritability... it makes a person feel like they're going crazy. What about sleep? Are you experiencing insomnia too? Or able to fall asleep but wake up an hour or two later?
You asked about Reverse T3; have you been tested for that?
Also, did your NCP run an iron panel, including serum ferritin? I bet your ferritin is very low, which contributes to the coldness, fatigue and so on.
How much Vit D are you getting daily in the CLO?
I suggest you look up a site called the Thyroid Disease Chat Center, post there and ask for advice. When I found out I had a goiter and started looking online for info, that was hands-down the best site I found. Much better than the STTM site which is helpful but really knows very little about hyper, especially Graves. The folks at the Thyroid Disease Chat Center were telling me it was probably hyper/Graves when I thought I had hypo/Hashi's... and they were right. You should find great info and support there.
For what it's worth, after trying a lot of different things, ultimately changing my food brought the biggest healing to me. I found out I was reactive to gluten, corn, coconut, and the onion family. I eat a restricted whole foods/TF diet. My thyroid is back in balance although I still have a nodule on the left lobe of my thyroid. But it is not getting bigger and I believe it will eventually shrink. I am also pursuing other forms of healing such as energy work and spiritual healing.
Have hope! You will figure this out and regain your good health!