I have been training Lucario and it said that before I battled a wild Pokemon. It has also said stuff like "Lucario seems a bit uneasy" or "Lucario looks out of it" and stuff like that. What have I been doing to make it start saying that? If it matters, I have done some Pokemon-amie and I super trained it to the max. Also anytime it enters a battle it does the little shudder thing like it has Anticipation but it doesn't say anything. What is going on? (I am also assuming this could possibly happen with a different Pokemon)
I believe this is because of your pokémon amie "quality" time.
I have experienced this with my moltres and articuno too.
If you give your pokémon 2 hearts it will start saying stuff and shake a bit.
Nothing to worry about.
Hope I helped a bit.
Source: 1 and a half month of experience.