Hi Nervous!

I am guessing you will find you have great fortitude!
Not feeling well, obtaining rather frightening diagnoses, being reminded of how fragile life can be and how susceptible we each can be to many conditions, is apt to cause us all some anxiety!
I am guessing we were all extra nervous at first.
It's often helpful to be interested and watchful as you figure out just what is going on for you!
Many of us may still get nervous when/if new symptoms arrive on the scene, etc. In time, you will learn to take some of this in stride though. It will never stop being a concern; yet, you will adjust to this a bit. None of us can stay ultra nervous about any chronic condition and manage the stress well.
Please don't worry about how nervous you should or should not be... or how nervous you are... in time, you will find a more comfortable "zone" in which to operate for your daily functioning!
It's great, imo, you are being so honest in expressing your concerns! I think this may help you move forward in your strategies for honestly dealing with stress/anxiety.
Take each day as it comes and make it as great a day as possible.
We are all here support!
Take great care of you!
~DejaVu