If you live in this world long enough. Someone is bound to break your heart. Step on it or just flat out disappoint you. At which point you will without fail experience pain. The kind of pain that, even though it had nothing to do with you hurting any part of your body, you'll ache physically. Running from the pain or attempts to avoid feeling the full force should be cautioned against. Pain has a place and purpose in everyones life. Having pain of an emotional nature should never be something you fear. It should be something you embrace.
'I haven't gone mad!'
I've learned that positive things can emerge from what can be considered a negative. Plus if you don't let yourself get a chance to feel, realize, and get over the pain it will be there still. It might not be visible to others but it won't heal. A wound only heals with time and care.