Emotional Hairball

Yes, you read that right I said an "emotional hairball". I am not posting this on Facebook . An emotional hairball is when you are just overcome with lots of feelings and end up venting by being either angry or crying or shut down. We all have them . But should we share them on social media? 
What is your opinion? 
What I have learned so far ; 
It is OK and necessary to feel all the feelings ...the good ones and the not so good ones, but sharing them is an art too. How and where to share them needs to be weighed carefully.