I lost the ability to feel?

I lost my dad and boyfriend in a span of 6 months. My boyfriend and i broke up and 5 months after that my father died of cancer. After this, i think i have lost the ability to feel any emotions. I dont feel happy or sad. Iv tried to cry, but nothing comes. The only emotion i feel is irritation. I dunno what to do. Nothing gives me pleasure. Things that used to make me happy before, seem dull and uninteresting. I feel empty. What should i do to go back to normal? Its been 1 and half months since my dad passed away.