How do I relax???

My God I am just sick waiting for tomorrow's ultrasound. 2pm cannot come fast enough. I feel like I have the weight of the world on my shoulders right now. I have been up since 4:15 this morning. I cannot believe how life-altering one visit can/will be...whether it is good news or bad news - things will be different for me by 2:30pm. I am so scared to have any hope whatsoever since I know the possible magnitude of emotions that will bombard me, but I am trying to remain optimistic on the off chance...what is the best way to deal with this? remain hopeful only to possibly get more crushed? I am at a loss. I am trying to sleep time away...the minute Kailey is asleep I take these ridiculously looong naps to mute my thoughts only to have them be fabricated in dreams. All I know is that this business of - 'everything happens for a reason' is not comforting me at all even though it 'should'...shouldn't it? What possible reason or lesson am I to take from this experience? I am trying really hard to be 'normal' in front of Kailey, but she is a very intuitive little munchkin and I know she is feeling some of my stress. I need this to be over one way or another so I can move on. I just want to feel 'normal' again.