The problems in the NHS can't be explained by seasonality. This has been coming for a long time and despite successive Governments throwing more and more money at it we're still nowhere near the 10% of GDP that other developed countries are spending on health.
Malthusian Doom is gathering speed, basically because as a resource consuming species we breed too much - and consider breeding as a basic right with an assumption that society will deal with the consequences of our actions. At least that's paraphrasing what an unemployed woman with a 13 year old pregnant daughter told me in the jacuzzi at the gym.
With staff leaving the NHS a new recruitment drive is needed - which means more money for salaries -- and although the tax payer will continue to fund the NHS, perhaps a sliding scale of costs and insurance backed payments might be the way forward, controversial as that may be. Things will have to get a lot worse before that gets proper consideration, but I have little doubt that they won't get worse so we'll see what happens.