Hi, whenever I take my shoes off, I notice that the veins on my feet are constantly bulging out. Oftentimes, I also feel slight pain as I walk with them off. I always feel skeptical and walk slowly and carefully when I notice this. However, when I have shoes on there is no pain, or with I have flip-flops on--with no socks-- I see the veins, but have no pain. I really want an answer to this problem.