MacMillan Cancer:
// Up to 50,000 people in the UK have cancer that has not been diagnosed due to disruption from the Covid-19 pandemic, new research shows.
This figure could double to 100,000 by this time next year if authorities fail to fully restore vital cancer health services — including check-ups, screening and referrals — that have been cancelled or paused as a result of coronavirus. //
That is just one illness, other conditions are not being diagnosed too.
It appears from this thread that there is a bit of a postcode lottery in terms of GP services. Some reporting service as mormal, and others reporting no service at all.