LeeLoo has her first bladder infection (with us).  I became suspicious about two weeks ago when she peed in the house.  She usually is left home for the day alone and we've never had any problems.  She has peed 4 times inside throughout the past two weeks and has also thrown up twice.  Just a summer note of caution if you notice any of these uncharacteristic behaviors in your dog.  Her activity (and cuteness) level has stayed the same.  We almost shrugged it off as 'oh, it's summer and she's drinking more.'  Don't hesitate to make a move on your suspicions! 

She went to the vet Monday and is on medicine to combat the infection.  They are not aware of any kidney stones or other problems.  The doctor recommended keeping her water fresh and watching for any other odd behaviors.  I'm glad my mother's instinct kicked in and we got this problem (hopefully) fixed.