Twinkle

I am worried about Twinkle, when she was 3 months and got really sick with hypoglycemia, the doctors and I thought liver shunt. After about a week of TLC, she was fine and I never took her back to be tested. Twinkle has always been a picky etaer but she will eat, she has not vomited, did have some loose stools(but I tried her on another food becasue she tires of her food(royal canin) My concern is that she is not herself to me, Today she was not happy at all to see me as usual. I was sitting watching TV and all of a sudden she took off running around the living room anf then just stopped. Every now and again I have seen her rub her body against the furniture or stairs but not her head and not often. I wonder if I am just paranoid because she almost died the first time, so I am scared of her every move. Her weight is fine. My other friends thathave Yorkies always tell me how energetic there pups are. twinkle has never been that, shehardly ever barks unless she wants something that we are eating, other then that, never. Nver gives me any problems at all but I have noticed that she runs from us all the time , like she is scared and we don't know why. Could it be that I just may be paranoid and worrying needlessly??