My 8 year old dog started limping this evening. She ran outside to chase a squirrel and was limping when she came back in. I can rub, hold, look all over and she shows no sign of distress. She isn't helping or whining. Acting normal except she seems confused as to what's wrong and she's eyeing up the sofa and thinking about jumping up before she does. Not sure if I should just give it a day to two...maybe she pulled or tweaked something or make an appt with vet right away. Currently she's being nosey about what's going on in the back yard and acting fine.