My immune system, which has protected me and been the foundation of uninterrupted good health for 91 years, has let me down.
I was recently diagnosed with Bullous penphigoid.A nasty itchy skin rash with blisters.It causes sleep disrupted nights from scratching,with a consequent lowering of morale.Brief details here from the NHS website -
Bullous pemphigoid is a blistering skin disease that tends to affect the elderly.
It's caused by a problem with the immune system, but usually goes away on its own within a few years. In the meantime, blisters can be controlled with medication.
About 1 in 10,000 people are affected by the condition in the UK each year.
What are the symptoms?
Bullous pemphigoid typically starts with a red, itchy rash that looks a bit like dermatitis (a type of eczema) or hives. This tends to last several weeks or months.
Groups of large, itchy blisters usually then appear on the red patches, just beneath the surface of the skin. They can be up to 5cm in diameter and full of fluid, with the thick skin of the blisters stretched tightly.
Where the hell did I go wrong? or am I being unreasonable ? Unrealistic?
I am not sure why you chose to show me this, as I'm not a medical professional. Anyway:
An immune system isn't failproof. It's subject to many random factors or influences and while we can try to keep it up and running, the chances are high that it fails sooner or later.
After 91 years, I'm actually surprised you don't have a lot more health issues.
The text you quoted says that it's treatable, so I guess it could have been worse :)