Hi all 37 year old male here

Hi all I'm aged 37 and been itching for the past 7 months started on my lower legs then went up my arms and now it's my scalp and face/eyebrows feels like a hair being dragged across my face at times or something crawling on my skin derm put it down to urticaria but I have no rashes or anything to back this up tried all antihistamines and creams but still persists tops of my shoulder aswell really itchy could this be a sign of something worse had bloods etc all fine but very worried about the itching as never had it before any information greatly appreciated thank you