L.H.
No worries. Completely perfect and normal. Cough is just lingering leftovers from flu - body's way of clearing gunck. Also, may be attention getter, if he notices you worry, and they notice. As for the lack of chattiness. Multi-lingual children take longer to start, but once they do, they can't be beat or stopped. Congratulations for being able to raise them bi-lingual. Sounds like you are a great mom.