Hi My husband is 64 and until I made him avail himself of a free BP and cholesterol test at the local chemists 3 months ago he felt healthy and well! The tests showed raised BP, raised blood sugar and a cholesterol of 7.4. When he saw his GP he had more blood tests and he started him on Metformin and Simvastatin. He took the statin for a total of 11 weeks but had to stop taking it due to the most awful aches and pains and loss of energy. His BP was never high enough for it to require treatment and the last blood tests showed a blood glucose of 6 and cholesterol of 4.5. He has had retinal screening, foot checks etc and they are ok so he is not due for another check up for 6 months. (I have, after reading posts on here, sent for a meter so we can check BS levels). He was just coming to terms with the diabetes when he started having awful episodes of palpitations and an ECG at the surgery showed atrial fibrillation and he is due for a 24 hour tape on Tuesday. It was fortunate that the day he had the ECG the fibrillation was evident as on the other occasions his GP could hear nothing untoward, his pulse was 80 etc. He started him on Cardicor and the latest BP reading was 127/71 which we understand is a good result. Today we went out with friends for a meal and he had a diet coke (he has cut out coffee and tea for 2 weeks )and he had terrible palpitations a couple of hours later. Was this the effect of caffeine?