I'm not sure who still follows but I wanted to begin posting some nutritional tips if you're battling symptoms of Hypothyroid.
The best way to rule out food sensitivities, that can go undetected and be the culprit for your fatigue and brain fog, is to try an elimination diet. This simply means you remove one or two common food allergens like wheat and dairy for at least 7 days. On the 8th day you reintroduce one item and observe your bodies reaction. In my experience going 14 days is an even greater trial run. The reaction can be anything from feeling bloated to immediate stomach pain or fatigue; This is a great indicator of a sensitivity. No matter how small you think the reaction is, feeling anythinf but energized after a meal is not the norm.
If this is true for you, you want to make a giant effort to cut these allergies from your diet. Food sensitives contribute to "leaky gut", which are at the root of many autoimmune disorders.
If you would like more information about an elimination diet, food Sensitivities, and other nutritional tips to help you kickstand your thyroid into full function, feel free to request my free thyroid audio training that goes out February 1st, 2016.
Working on my food sensitivities now.