Derek,
Do not feel alone. I do not know what I have yet (I hopefully find out today) and I am a basket case. You have to work through it. The support on here helps. The worst feeling is being alone. When you are here, you are not alone.
My mind was running in high gear thinking about all the things that could be wrong. I started thinking who will help my wife with the kids? Will my employer understand and let me take leave without losing my job? Will insurance pay for this? The questions are endless. YIKES! I started feeling aches and pains all over my body. The mind is a powerful organ.
Try to keep positive. I know I am trying hard to keep it positive.