Miniature Schnauzer stopped eat he dry food but got her to eat some wet. Now leaking brown urine mixed with blood all the time since 7pm last night. Taking her to the vet at 10am today but wonder what it could be? Doesn't want to play and stomach is firm. Was in heat the first of Apri l. Doesn't want to jump on the couch like normal. I have been in a lot of pain this week and she normally follows me around and stays with me but she has stopped that as well as doesn't meet us at the door. She is 8years old. Help please worried sick about this