The official NHS macros are:
Energy: 8,400 kJ/2,000kcal
Total fat: 70g
Saturates: 20g
Carbohydrate: 260g
Total sugars: 90g
Protein: 50g
http://www.nhs.uk/Livewell/Goodfood/Pages/reference-intakes-RI-guideline-daily-amounts-GDA.aspx
So I would say that you're not following the NHS dietary guidelines, which is no doubt why you're doing so well. Good work!
The NHS' math doesn't seem to add up. Assuming 4 kcal per gram for protein and carb and 9 kcal per g of fat, I get only 1,870 kcal, not 2,000 kcal. That's assuming that the sugar is part of the carbs. If the sugar is in addition to the carbs, I get 2,230 kcal. I wonder how many people reading that would think the sugar is in addition to the carbs?
4 L of water a day seems excessive, though.