This is a long post - please bear with me. Mara has been in pain since early Thursday morning, and the vet "has no clue" what is causing it.
Background - Wednesday night Mara and Matty had a very heavy play session in the back yard. Mara did a lot of hard running, but nothing out of the ordinary for her. Beginning in the early hours of Thursday morning, she would intermittently scream in pain. We assumed it was Matty, since it's usual for her to get stiff and sore after running and she's a bit of a baby.
After I got up Thursday, Mara jumped off the chair and let out a scream. But there was no limping, and no indication of anything being hurt, besides maybe a muscle tweak. She walked just fine that morning. But through out the day, she seemed to be experiencing more pain as indicated by her screaming. However, there was no associated limp, and I had no idea what was hurting her. Thursday evening she ran over to me and was pretty excited about something, then just started with the gsod over and over and she ran 3-legged back to her bed, holding her back left leg up.
She didn't get up to eat Thursday night, and we had to feed her in bed. Friday she seemed better and didn't show any signs of pain all day. She got up to eat, and seemed ok until a little later on when she tried to stretch. She let out a scream as she stretched her back legs out, but still showed no limping when she walked.
Sat and Sun, more of the same. She walks around the back and uses the bathroom, no limp or favoring the leg. Then, suddenly, with no warning, will scream and hold her leg up. X-rays and radiologist ruled out osteo, breaks and dysplasia. The vet examined her pretty thoroughly, and ruled out LS as well, because of no pain while manipulating the tail, no neurological deficit, and sudden onset. The vet narrowed the problem to her hip. Blood work is back Wed. The vet thinks soft tissue injury, but Rimadyl and Tramadol don't really seem to effecting the injury either way. She is very depressed and afraid to get up. Any ideas on what this could be?