You are having generalised pruritus
It is excessive when you have clothes on.
It means, when you remove clothes, you may be feeling well.
Some time you are having bumps..ithch intensively and then go away.
With such history, it seems that you are having papular urticaria
as lichen urticatus.
It may be due to insects or bugs.
Take oral steroids
in tapperig dose., take antihistaminics, apply mid potency steroid cream ...After few weeks you will be improved.
Still, you consult dermatologist
I hope you got my answer.
Dr. Ilyas Patel MD