I don’t know if I’ve thanked you for this info as I’m on the hoof juggling who is who and already lost track! Thank you though for this information very muchHi Lisa, Welcome to the forum.
With T2 the body does not produce enough insulin, or is not able to use the insulin sufficiently to balance the glucose that is in the blood. The glucose comes from the carbohydrates that we eat. This may be controlled through dietary changes and a more active lifestyle and/or medications which make the pancreas produce more insulin, or make the insulin available work better.
With T1 the body sets some antibodies going, and these gradually destroy the beta cells that are in the pancreas and make insulin. Eventually once these have all gone there is no insulin produced and we have to inject it instead.
Some of the symptoms are common for both, hence the misdiagnosis for people sometimes. The HbA1c will tell you an average levels of glucose in your blood, which will be high for either type. The additional tests for T1 measure the output of insulin (c-peptide) and/or the GAD antibody test which looks for the presence of those pests that are destroying the beta cells.
I hope that all makes sense. Let us know how you get on, and do ask what tests have been done and what your levels are.