@tootyfruitypickle that is scary, I hope you (and everyone else) remain well! I really know very little indeed about science
but have found this thread really informative and helpful, thank you to all. 
Being honest, I haven't felt this nervous since I received my shielding letter last year. I worry that we will look back on the last months as a much easier time compared to what's coming. Not to "make light" of what's already happened, I know lots of people have lost loved ones or been ill.
This time though I am worried about "logistics" and the knock on effects of the crisis more than my own health. I can imagine things like the NHS and food supply systems falling over very quickly due to the number of people who will be self isolating or ill, or unable to work if schools etc close. I also dread having to HE my DC who have exams next year, but I definitely want to keep this thread about the science!
(In a self centred way
I have an over active immune system rather than under active, and it likes to try and kill me when I get ill normally so I am worrying)