The blood test was 3 vials around 1.5ml in total, they recommended a blood draw, but I was doing it at home, so i used a finger prick kit, but the vials were filled as recommend, so I didn't see the problem.
I've had a look at the iodine issue. I have 3 or 4 eggs a day for breakfast, with some spinach, often have 200-300g of broccoli for my food in the day (my meals are typically breakfast, pot of food around 1100-1130, another pot 1400-1500, dinner around 1800-1900, and maybe a skyr style yoghurt an hour or so before bed), also when I wake up in the morning I have a 1/4 tsp of pink salt with a shot of lime juice in a small glass of water. Any salt I add to food is Himalayan pink salt. Bread I rarely eat, but when I do its rye bread and its with some poached eggs.
I love milk, but again don't drink that much any more (had loads as a kid), I have some cheese every now and then as a treat, but not often. Sea food, one or two portions a week, its generally white fish, but I have been taking mackerel to work a little more recently.
I'm sat outside in the British "summer" at the moment, its probably 10degC and I'm wearing shorts, feeling the cold isn't an issue. Eyebrows are as they have always been, I've a good thick head of hair (although my hair is fine, but always has been), Im not a hairy person, legs/body are relatively hairless.
I don't have an oral thermometer, so I will pick one up today and evaluate tomorrow.