Liothyronine withdrawal

So I am well into the second week of my withdrawal from the liothyronine hormone replacement and low iodine diet that is required for the remaining thyroid cells, cancerous or otherwise, to become iodine avid in readiness for the radioactive iodine-131 which will be administered on Monday. They said that I might become tired. And I was. I was also having difficulty sleeping. Last night was the worst and my arms were tingling and feeling really odd. It seemed like it might be lack of calcium as I was told to expect those symptoms after the thyroid surgery. So initially I was taking Ca tablets and gradually, as instructed, came off them. No problems. But it seems that I now need them again as I may not be getting enough Ca from my low iodine diet which has cut out all dairy products.

A couple of times last week I didn't eat soon enough and I hit an energy brick wall where I was almost unable to chew to get the food into me. This does happen to me sometimes but is usually preceded by gasping yawns. None of that this time, just bang, no energy. After eating I will revive fairly quickly.

Today I feel much better. I cleaned all the surfaces in the kitchen. I did not get that much of an energy dip at lunch time. More Ca this afternoon and I'll have another before bed to see if it will help. It would have been good to have been warned of this beforehand.