As someone with asthma (not badly, just the occasional wheeze with a cold etc) I'm pretty much resigned to being locked in for at least 3 months, if not longer. I'm a similar age (and shape!) to Boris and have no illusions about the effect C19 would have on me. I had flu a couple of years ago and was pretty out of it. I had to go to hospital once, to be put on a nebulizer. Fortunately, that was in Spain and I was seen, tested and treated and home within 2 hours.
In my (unpopular) opinion, the UK isn't being anywhere near strict enough and as a result, we're massively prolonging the lock-down AND hugely increasing deaths. Not to mention, as SCJ has said, the country wasted the long stretch of preparation time they had, also worsening the effect when it hit us.
I don't think I'm OCD. I take all the precautions I can and then I do my best to forget about C19 and just get on with living. As has been said on social media repeatedly, I'm not being called to fight a war. I'm sitting on my sofa.