Your chest may hurt because you might have something going on your body.
You might have a itchy throat or you might be sick.
You can tell by Crying... If the baby is in very serious pain she / he will scream and not stop until releive if the baby is in very little to no she/he will just make very fant sounds and you kind of can sens when a baby is in pain ...
Answer:
Cognitive Behavioural Therapy is the most effective form of psychotherapy for anxiety disorders
There is a number of things you could do you but the best thing you could do is to leave the situation and go get help. You should avoid getting into it because that could just make it worse same goes with being defensive. I hope this helps!