Hi Nicola68
I am also T1 and have had diabetes for 36yrs old. I am on four injections a day and also metformin. The metformin is to try and give you a bit of help with the amount of insulin you take. I have not been a typical diabetic, ate and drank normal coke cola. Alcohol when i was younger, but i just want to say i also have several complication by thinking this will never happen to me. I have retinopathy, both eyes are completely lasered, Left eye has macular oedema and constant bleeds at the back of the eye, they are now thinking of taking the vitreous jelly out to try and prevent further problems ( but as we all now every one is different). I also have no lining to my kidneys, had to stop driving and also have under active thyroid. I became unwell at the beginning of this year and have lost 4 stone, but am feeling better now.
I think you should worry about the complication of not doing your injections and having high blood sugar.
I understand your scared of injecting and putting on weight but just monitor your sugars four times aday and watch what carbs you are eating, but remember we need some to keep us from hypo/hyper.
There is alot of info on this sight
Take good care of yourself