I have a 6 year old female tabby cat that is and always has been a loving cat. She lives with us on 6 acres partially wooded. She came in the house after being out for a few hours. She started acting strangely in way of getting up and down out of my lap - meowing very loudly and very suddenly running over to her food dish and then running to the door and wanting out. I let her out and then went over to her to pet her and then she ran off into the woods like she was scared. This happen several hours ago and haven't seen her since. She usually comes when I call her and she never has ran away from me like this. Does this sound like she was in pain or what.