My wife has been a type 2 for 30 years most of that time on mixtard without any problems. A couple of years ago she had a mild heart attack and then it went haywire. She was told she is a type 1 in February and is now on lantus and novorapid. Her levels seem to have settled and over the last week or so her morning glucose was between 4.7 and 9.3. Before starting on the current regime she was having 65 units of mixtard, then humulin and latterly Novomix morning and evening. Currently she has 60 units Lantus at bedtime and her novorapid insulin to carb ratio is supposedly 1:6 but seems to need close to 1:5. We have the carbs and cals book and most of the time we are OK. But whenever we go out for a meal, the next morning it's through the roof. yesterday morning level was 7.9, this morning 18.9 we calculated she needed 17 units to deal with the meal but it would appear from the levels that we underestimated by 66g of carb. I cannot believe we were that inaccurate but this has happened 3 times on recent occasions and now my wife is afraid to eat anything we haven't weighed ourselves. I accept we may be a bit conservative because she was getting hypos at 3 am which she doesn't on this regime. Anyone got any ideas what is happening here. I would add that we felt the professional input when she changed regime was less than desirable, "oh well you know all about injecting yourself etc etc". Sorry for being long winded.