My sheltie will be 11 in May. He has always been a picky eater and quite thin. He has started to not want to eat his meals. I fed him 1/3 cup of Blue Buffalo in the am and pm. He became very picky about it and would eat sometimes. I added about 1tbs. of canned Blue Buffalo to the kibbles and he was crazy about it first. Lately, he will not eat in the am. and may or may not eat in the pm. He does not act ill in anyway. He is on meds. for a low thyroid and wonder if something is going on there. He has not been very active for a few months now either. I just thought it was age. Does anyone have any advice for me? I would like any feedback. He is due his yearly physical in June.