First song attempt ever. Comments/constructive criticism welcome

I gotta go...

Im sorry that I've been this way but
I've felt sick for all these days
Ever since we've talked about
It's all I think about
Things have went so fast
And I don't know what'll last

Well it's time for me to go and I
Don't know if I should say goodbye and
If I could say one more thing I'd
Take back everything.

Oh.. maybe this road will bring me back to you
With a thousand more things to do with you
But time works in mysterious ways and
I'll be gone for days
And hopefully I'll be back
But if I'm not,
And I leave
Please believe
I left to help you...
not bad, but you may want to call it something besides "I gotta go"

makes me think of pee