Hello, I would be happy to help you with your question.
The dull ache and appearance of your labia is related to 'vulvar varicosities'. These are veins in the labia that can get swollen during pregnancy
and certainly uncomfortable. They are accentuated in certain positions, as in standing in the shower. They are similar to hemorrhoids around the rectum
. You should talk with your doctor about this and ask about compression stockings that come up above the waist.
I hope that this helps and good luck - Please ask me if you have specific questions!