First of all, you are NOT alone.
I agree with what JK says.
I also lost a kidney. Only thing is, nobody knew for years and years until my remaining kidney started to fail and scans revealed a totally atrophied left kidney with around 22% function in the right one.
I was furious! How could I not have known? How could this not have shown up on lab tests? Why did I have to develop diabetes which likely did most of the damage, along with kidney stones and bouts of kidney infections? How dare the universe ruin one of my kidneys? And how dare other people get in my way, speak to me at all, go about their business when I'm scared poop-less?
I was cross, cranky, irritable, asked a zillion questions.
But no nurse or doctor ever told me I was "more anxious." That nurse should have her license jerked.
Of course I was anxious. Of course you are anxious. Of course I was grumpy. Of course you feel grumpy.
Just know that the anger and fear probably will subside the more you know because knowledge is power.
I, too, resent the "invasions" of my privacy with tests and scans but I also now welcome them because at least I will know what's going on and can take appropriate measures.
The difference between us is that I didn't see a therapist formally as I am a member of a 12-step program which gives me tools – and expert people – to deal with my issues of resentment and fear and one of them happens to actually be a therapist.
I would venture to say that most of us here feel or at least have felt like you do and we are here for you. You can vent, rant, complain and we all will understand and support you. Together this group has some answers. . .
You are not alone!