As you approach closer to what's in your heart, to be true to yourself, to be authentic and real, expressive and uncensored, you're going to come face to face with blocks to love.
These will come up inside you with an emotional charge likely from past events. This stuff doesn't just go away.
In your past, particularly in childhood, when you were expressing yourself more openly and freely, if you did something that other people decided was "bad" or wrong or that you should be guilty for, and especially if you were punished in some way or love was withheld, then you'll store this belief that being yourself will lead to pain. That unless you censor yourself and stay within the lines, you will likely make mistakes and will suffer for it.
Other ways it comes up is that you can't do what you want or express how you'd like because someone will disapprove, or you're only supposed to do what you were told to do (which is a common parenting style), or that if you do what you want you will displease people, or will experience rejection again.
So then as you go to do what you feel you'd love to do, you'll stop yourself with fear or sickness (as a defense), because you know that based on the past, if you go ahead in this way, someone is going to get hurt. You.
So you fear the same unforgiving attitude, the same unloving response, and the same guilt-trip, pain or suffering. When you believe that being yourself will make you unloveable, how are you going to be yourself?
Making mistakes should lead to forgiveness, be responded to with love, and reassure you that you are still innocent. Especially since "nothing really happened." If they don't, and if something negative happens, and you form a false self image based on this pain (which you do to yourself), then it stays lodged in your mind/emotional body until such a time as you attempt to do something in life that confronts it.
If you're intent on waking up or healing or forgiving etc, then sooner or later you will be pushing the envelope of your beliefs and comfort zones and you're going to come face to face with your pain again. If you want to move forward rather than hit a wall again, healing is going to have to happen. Whether you will have a catharsis or cry your eyes out or do a massive forgiveness or receive a miracle, one way or another the baggage has to go.
But then you will be set free.