Diagnosed 2 years ago with T2' fasting 12.0, HbA1c 7.0 but within 10 days had fasting of 5.2 and 2 months later HbA1c 5.5 (and 3 stone lighter). No meds. Well controlled until last few days when 1 hour pp was 10.0. Also following morning fasting 7.5 when usually 5.5. Only thing I have changed is buying a coffee machine for Christmas and started drinking strong homemade coffee. No caffeine for 24 hours and 1 hour pp 5.9. Anyone else experimented with caffeine? I've seen some research showing that caffeine increases insulin resistance but didn't realise it can be so dramatic. Might try some more experiments.