My dad lived until the age of 57. But I lived my whole life without a father. What I had was a selfish, rude, alcoholic, scrimping to the point of almost freezing in the winter (though he made alot of money as an electrical engineer), argumentative, racist, uncaring, critical, demanding, entitled, self-inflated stand-in for a father.
When the last rites were given to him and the priest asked, do any family members want to pray or express forgiveness? Not one of us spoke.
What you are experiencing is loss and the emptiness you feel when you don't have love. I'm so sorry for you, and know you need a hug and some encouragement in your life. You are a good person and you deserve to be loved and treated with respect and dignity. Your body sometimes knows that before your brain and your soul come around.