Hi
@Bassiette, from my own experience as a diabetic and not as professional advice or opinion: 'very bad' is something that you have been told by someone else, yeah? Usually it is from your health care provider or another place.
Whilst there is research which says that
the better your diabetes figures are in the first 7 to 10 years of starting on insulin as a T1D the less risk of diabetes complications later on (care.diabetesjournals.org/content/37/1/9 - Nathan 2014) there is also research which reports
that cardio-vascular events (heart attacks, strokes etc) are more likely for diabetics (there were more T2Ds than T1Ds in the study)
with HBA1Cs greater than 8 % or less than 6%. (bmjopen.bmj.com 'Glycated haemoglobin as a risk factor in cardio-vascular mortality snd all-cause mortality in diabetic and non-diabetic populations: a critical review and meta-analysis" Cavero-Redondo et al 2017 Vol 7 Issue 7).
Why HBA1C between 6 and 8 % for diabetics? No-one is sure.
There has also been debate about the effect of diabetes medication on heart health, at least in T2Ds
www.nbci.nli.nih.gov/pmc/articles/PMC5350060.
The
age of onset of T1D also has an influence on cardio-vascular disease in T1Ds (
www.thelancet.com/journals/lancet/article/PSIISO140-6736(18)31506-X/fulltext)
I know that the above is very confusing and now that continuous glucose monitoring is more available and can be used in research more now we might see some change in what is regarded as an 'all right" HBA1C.
Just my guess, but ask your DSN and doctor what is the best range of HBA1C for you.
Bets Wishes