Fruit is less then I used to eat to be honest.
Which is good but does not indicate how much "
less" is, or what type.
I'm gona assume
your pretty clued up about your own diet and know what your eating. I was eating lots of grapes a short while back until I found out how high carb they were and at the time I would have said
I was pretty clued up about what I was eating. Live and learn.
Some people can't handle some things, so the
heaps of lentils may be working fine for you or maybe not.
There still a slow release of glucose into the system just like with complex carbohydrates they release the sugar into you system gradually,
but it's still putting sugar into your system.
Bread down to 4 slices a day, I have just upped my carbs which includes bread but that is as little as once or twice a week. When I was working to bring my numbers down bread was off the table.
It was just not a good choice it's a carb, complex or not, and will raise bg levels.
Not telling you what to eat here, but you raised the question of why your numbers are creeping up.
1. Dairy can slow down your digestion process, 
Since you have cut out the dairy you might be finding the rise in bg to be caused by
food breaking down quicker and entering your blood stream faster now than before, when you talk about your diet it's was pretty similar before being vegetarian so this could be why your seeing a difference in your numbers.
By upping your vegetable fat intake it could help counter balance this effect.
2. Fruit, bread & Lentils. (carbs)
All will raise you bg even if it's by small amounts.
IF you are trying to reduce your numbers, cut down on these or cut them out in the short term just as a personal experiment to see if it gives you the numbers you want.
I guess the question here would be to look at your choice to turn vegan
IF it's as a way of reducing your numbers upping vegetable fat and cutting back on carbs might help.
IF turning vegan is
not a life choice but a diet choice to reduce bg numbers it might be worth re-examining that choice.
At this moment it time it does not seem to be working.
I have no axe to grind with vegan or any other diet choice different things work for different people.
