Hi all - hoping someone can help me out here.
For the last 3 weeks or so I have been having a really intense itch on my arms and legs.

I have no idea what it is, as I haven't done anything different. I always get it in the evening, and sometimes in the morning. It's driving me bonkers.

When I scratch, my skin goes bright red, and I get little bumps on it (not like huge hives or anything, but almost like goosebumps).
Could it be winter itch? If it was something I was ingesting, then would I be itchy all over, not just my arms and legs? Does anyone have any idea what this may be? Is it an allergy to something?
I'm really frustrated with this. When it starts I just can't scratching. Does anyone have any suggestions, or similar experiences??
Thanks.