I've been experiencing bulging veins in my hands that occurs nightly when I want to sleep and also seems to be exacerbated by any type of heat (summer heat, or hot showers, etc). I'm also find that the engorged/bulging veins are very very painful. My whole hand is very painful and it directly correlates with the appearance of the veins.
Otherwise, I'm not noticing any change in color or any actual swelling of the hands. Just pain and engorged veins.
Does anyone know what this could be?