What´s this I feel burning inside?

I don´t know what this is
But when I feel you near
My heart feels weak and begin to jump
I know I can´t say that´s love

*But I feel I can´t breath
When you are far away*

I need to have you close of mine
Tell me is it so bad
To want you knowing you are married?
I want you to my side
And I´ll fight to reach you
I know I have found “that” someone
And I won´t let you go
Without have been tried to

*Chorus

I´ll walk thousand miles
But sooner or later I´ll reach you
My dream went with you
And I´ll go to recover it
I´ll struggle to be the one
Who lied at your side

*First verse