Is it normal to barely feel empathy if any at all?

I don't think I can feel any sort of empathy for anyone or anything really, I've never been affected by other people's feelings; I've never felt excited or happy when someone close me felt like that, nor did I ever feel sad when someone else felt it.

To give an example, when my grandpa died (I never met him) I had my mom cry in front me for hours, I of course tried to comfort her (mostly because I felt obliged to, I'm really awkward at doing that), but I couldn't feel sad or anything, I felt emotionally numb. It was the same thing when my grandma died, I cried her twice for a couple of minutes and then I had both my sister and mother crying her for weeks and I could not feel a single thing. Whenever someone tells me about their issues and problems I'll just feel indifferent, even if they were to tell me about something traumatic they experienced.

Now, I do feel compassion, I will feel sorry somewhere in my mind if I see someone sleeping on the streets, I will feel sorry if someone tells me about something traumatic, I can feel sorry for people and feel the need to help others and make others feel better usually, it's just that even then I will feel indifferent.

Not sure if this is normal, it doesn't feel like it is, and being this apathetic doesn't go well with my general social awkwardness, so most people think I'm a piece of shit (which I kinda am ngl). No matter what I try I can't feel any sort of empathy, I don't even know if I know what empathy feels like really to be honest.