Tachycardia

You make my heart beat faster.
Yes, you.

There's two types of tachycardia.
Pathological and Physiological.
Pathological tachycardia is due to lack of oxygen in your body.
The type of tachycardia you gave me is different.
My body is not lack of oxygen, my body require more oxygen for me to keep myself alert because you are walking right beside me.
I put in effort to walk slower, you put in effort to walk faster, so that both of us are walking at the same pace.

I like you very much.
Hope that we can do it again.