It is common.
You were brave.
Emotionally connecting to talk of traumatic memories is difficult, very difficult, no wonder you're so upset about the void you feel.
Music has helped me greatly bridge the talking with the feeling, maybe you could turn on some songs that resonate, see what happens.
Also, hope you'll be very gentle and compassionate with yourself. It will do two things- keep you from feeling more upset, and can ease you into the place you want to be, where the disclosure ant the emotional reaction sync up- just go easy, treat yourself to something, remember you deserve respect and caring for going through the original event and for choosing to talk about it!