Iodine deficiency is a common disorder. They add iodine to salt because people weren’t getting enough in their diet but nowadays people hardly use iodized salt and instead use sea salt etc
If you have an iodine deficiency you will go nuts and turn into a slobbering sick fool like how you sound to us all right now.
It may be worth your time getting a blood test to see if you’re deficient in iodine; especially if you have cold extremities like cold hands and feet.