I've had a lot of headaches recently, so I need to see the doctor.  But I'm really nervous about what he might find, so I've been putting it off.
I think I need to make a doctor's appointment, but I don't want to do it.
user
why not? if it will possibly get you better
assistant
That's true.  I've just had these headaches, and they're kind of scary.
user
might as well find out now before it get worse
assistant