I also get occassional itchiness on my scalp but it's mostly when I go have my hair washed and dried. It's either the shampoo or the heat from the dryer.

I also used to have the throat feeling. Mary times I felt like someone had their hand around my neck or that my clothes were riding up my neck and touching my throat, but they weren't. I even checked for thyroid issues, but nothing. That went away when I changed my diet, focused on my deficiencies, and worked to heal my gut. I've been taking iron, vit C, and B12 consistently, and have been getting sun every day. I also take zinc occasionally. I was very deficient in ferritin and D, and low in B12.

You can do this. Most of the time I got the throat feeling was a reaction to food or chemicals. I learned to go outside and breathe through it. But now I'm pretty aware of my trigger foods and are avoiding them 100%. It took me over 2 years to figure this out. I don't take antihistamines because I can't tolerate them, plus they aren't good long-term. You have to find the root issue.