Aprons and overalls in a dream can suggest getting to work on family suggestions or secrecy.
If you are wearing such garments, what part of you are you covering up in waking life? Or are you about to undertake an extremely difficult—and messy—task? If you are wearing an item of clothing as camouflage, what are you hiding?... The Element Encyclopedia
Sometimes dreaming of being thirsty lacks any symbolic meaning. Simply, it can be that you have such a physical demand and it is directly reflected in oneiric episodes. Nonetheless, if you discard this option, being thirsty and drinking water often means you have satisfied a pressing need.
If instead of water you drink wine or spirits, it is a sign of joy, enthusiasm, and creativity.
To drink from a cup made of glass announces disclosed secrets; from a beautiful container, releasing a weight and tranquility. A sweet drink promises happiness, while bitter, mild discomfort. Drinking fresh water indicates happiness, but warm water announces an emerging disease.... The Big Dictionary of Dreams