I have no emotions.....is this normal?

when i was little i used to be a happy girl, well that's what i remember but my mom left me to go work in another country when i was 7 and that's when it all stared i guess, i stayed with my dad and when he left to work my uncle did some horrible things to me, i remember i used to cry everyday but one day it all stopped, when i should be sad, i felt nothing, when i should be happy, i felt nothing, when i should be angry, i felt nothing. i found myself force to simulate all feelings. All I feel like is a body and a brain without a soul, my relationships are built on false pretenses and emotions I never even felt but acted like I did. But something happened two weeks ago. i had a boyfriend, i guess i was with him because i could relate to him and as time passed i just got used to him and when i found out he was cheating on me its like something inside me woke up i felt like i was shattering, like all my feeling woke up and i felt like i was dying, but once again it all stopped, they all went away again and i don't feel anything anymore...... i don't understand whats wrong with me...