Medication - I've gradually increased my stock of NHS prescription to 2 months by ordering slightly early every time. There have been shortages recently and I think that this might get worse. I would probably die quite quickly without some of them, so I refuse to feel guilty about it. I've got a good stock of over the counter meds to deal with simple things, coughs, colds, fevers, minor pain, eye infections ect. The only thing I cannot get is mag sulph paste, but I do have a big pot of hoof poultice for horses, this does the same job. Its a new pot, so won't cross contaminate.
Food - We've got about a months worth of easy to heat food and carbs, I want to increase this to two months going into winter, and get more preserved fruit and veg. I bought a 16 kg sack of bread flour and 5 kg of rice due to having a panic last month.
Energy - I'm over paying on my electricity to build up a reserve fund, I've stocked up on calor gas canisters for emergency cooking. We've nearly got enough logs for the winter already. Got wind up radios, loads of batteries and the solar power batteries will keep the freezers and lights going for quite a while if we turn off the central heating and rely on the woodburner.
Water - if we get warning of it going off, we can just fill up both the baths. if we don't, I have 20 litres of drinking water, a full water butt for flushing the loo, and loads of water purification tablets.
Apart from building up stocks a bit more, my preps haven't changed due to the change in government. I have about the same amount of faith in this lot to keep us warm and fed and the last lot, so very little. But time will tell I suppose.