Ask me what it feels like to be dead inside. Go ahead. Ask.
I know you're curious.

It's like swimming in circles.

You can't see the shore and you can't see past the surface of the water. You're moving but you're not making any progress and it's frustrating. Your muscles are on fire and you're hungry but you keep going because what else is there to do? You could stop and just wade but you know that if you do that you'll give up that much quicker. You wonder what it would be like to surrender and let the water wrap you in it's unknowable depths for the rest of time. You wonder how deep it is and what it's like down there but you figure you'll end up there inevitably someday anyway so you keep going for the time being.

You can change the way you move through the water and how fast you go but you never stop swimming. There's a variety of weather and waves you experience. Sometimes it's nice and the water is calm and you can forget about the emptiness you feel inside and do the backstroke to feel the sunlight on your cheeks but other times it's cold and the choppy waves smash into your face and sting your eyes and all you can focus on is your breathing over the burning in your joints. Nevertheless, you swim and swim and swim without any destination, waiting for the next change to come.

You do a lot of thinking. You wonder what it must be like to feel anything other than longing and discontentment and exasperation. You ponder the big questions and answer the little ones and you try to fill the void inside you with complicated concepts and pretty words. You thoroughly analyze yourself, coming to terms with everything that makes you what you are. You're not happy but not sad either. You're not even somewhere in between. You gave up crying a long time ago because it never helped anything but you still laugh when you get the chance. You're very practical and proud of your cognitive abilities but you also suspect that they are the reason why you don't experience emotions the way other people seem to. You once read "Those who are sensible about love are incapable of it" somewhere and you think just maybe that applies to all the feelings you don't feel. This almost makes you feel distraught, or maybe you just want it to. Regardless, you contemplate anything and everything to distract yourself from the never-ending circles.

You swim and swim and swim and swim because that's all you can do and all you want
all you've ever wanted
is to feel alive
but you don't know how.

And that, my friends, is what it feels like to not feel anything at all.
Swimming in circles.