why do i do this?

[Post Toastie]

sometimes a good "read" does not make for a good delivery.

perhaps this is what you're experiencing.

it may look good to the eye and be exactly what you wanted to say, but when you hear it back, it doesn't exactly flow.

if this is the case, try doing the opposite. sing what you're feeling, then write it down - and tighten it up if necessary.