I just took like a 5 minute shower and my legs look like a lobster and I can see my veins in my legs…

I just took like a 5 minute shower and my legs look like a lobster and I can see my veins in my legs like crazy! I don't use hot water anymore it's really like warm at best. While I was taking my shower my legs and feet started burning and itching like I had something biting me a million times. What is going on?