Thank you everyone for your responses. My vet is running a culture on her urine and said she would get back to me tomorrow. I never thought about long grass, we are out in the country and she loves to run in the fields, in fact she prefers to do her business in the tall grass. I will try to keep her away from it in the future. I've been feeling so guilty about leaving her in her kennel that I have my sons girlfriend coming over after two hours and letting Chloe out for a little, hopefully this will help.
This is an amazing site, thank you all again for your advice. I will keep you posted.