Feeling numb like that is the brain's way of giving you a rest. At some point you have got overloaded emotionally so the brain compensates for it with the numbness. It's what I call 'robot' mode where you are functioning but not really feeling. It can happen also after a big shock or trauma. Try no to worry about it, the feelings will come back.
__________________
Pegasus
Got a quick question related to mental health or a treatment? Ask it here General Q&A Forum
“Everybody is a genius. But if you judge a fish by it's ability to climb a tree, it will live it's whole life believing that it is stupid.” - Albert Einstein