I don't know if this is suppose to be like this or not, but I just wanted you guys opinion on it. Some guy's veins are popping out and muscles looks full all the time, specially in the gym, but also outside. I know that vascularity and full muscles has something to do with carb intake, but I'm not sure exactly how. I never look really vascular and muscles does not get that full look - at least, only when I train a given muscle. My arms are pretty vascular when training, say, biceps. But outside the gym or just if the given muscles are not worked out I almost never get that vascular full look - only at night before bed (think it's some hormonal thing). Am I overthinking or is there something I should do differently?