Emotional instability can be a result of multiple in the live of a person. Ee can identify traumatic experiences, constant stress, bad habits among others. Such sensitive stage could be as grave as any mental illness. Due to this, it is essential that people under such circumstances ask for professional help before things go out of control. Unfortunately, current rhythm of the live don't give you any change of a breath then, it is not easy to distinguish between common tension and to be close of an anxiety episode. If people don't pay attention to first symptoms, certainly that other will notice that.
It is frequent that trustworthy friends try to help their own friends in such circumstances, however, in the point that other already realized of the problem it is harder that people affixed with excessive sensitiveness accept it, contrary they fall in a negation stage thinking they can handle things. The true is that 'yes' they can still handle that sort of situation but not alone.