your not on that much insulin, in fact I was on more before the pump...........
I was on 38 units of Levemir overnight and 32 in the morning, which is 70 in total.........
I was on a 3:1 ratio for breakfast and usually had about 25 g of carbs, so 7.8 units.....
The rest of the day was 2:1 and I had about 200 g overall, so about 40 units.....
so in total I was putting in about 118 units a day..........
on the pump I now take between 50 and 70, sometimes more at weekend, so practically halved.........I dropped a stone in weight without even noticing.............less insulin is better for us all as bigger doses are unpredictable and hard to manage.....
your 150 g of carbs a day should be very manageable and give you good blood sugars........
when your blood sugars spike, unless they are uncomfortably high, you shouldn't be correcting, as essentially it will come back down again after 4-5 hours.....when are you spiking........? and what is the spike like in relation to your pre meal BG....?
a good way of tackling spikes is to get the insulin in well before you actually eat........you can experiment with the timing, ideally 10 minutes before you eat, but it can go more than that, I ended up on about 30 minutes across the day but have been at 45 minutes............you should play about with the timing and see what works for you......
your lumps could be a problem and the pump could help with that if your team conclude there are significant issues............
has your rotation of injection sites been sufficient do you think...........?
a pump would help but i believe there are few more tricks you could try before taking the plunge.........
have you attended DAFNE or something similar.....?