Nice list, @Mila! May I suggest a few edits?
SQ-Subcutaneous or just under the skin injection
IOB - Insulin on board (used interchangeably with BOB)
CF - Correction factor (used interchangeably with ISF)
I:C - Insulin:Carbohydrate ratio, sometimes called Carb factor
ISF - Insulin sensitivity factor, sometimes called correction factor
LCHF - Low-carb, high-fat way of eating
HCLF - High-carb, low-fat way of eating, often vegetarian or vegan
mg/dl - Milligrams per deciliter (blood glucose meter measurement mostly used in the US)
mg/dL (changed the lower case “l” to the uppercase “L.”)
RAAI - Rapid acting analog insulin, for example: Humalog, Novolog, Apidra
Sx - Symptoms
A1c - Glycosylated Haemoglobin (lab test that shows mean blood glucose over time), also abbreviated as HbA1c
GP - a common abbreviation for gastroparesis, a secondary complication of diabetes