If something is wrong, you would feel worse because you didn't get checked out. I doubt there is problems with blood circulation, but talk to your doctor about your concerns. That's what they're there for. Even if you're not thirsty, you need to drink a decent amount of water. They will be able to check your fluid levels on an ultrasound if they choose to do so.
Also this is my first baby so idk if I'm just paranoid?