Hello,
No there is no tick box on forms, it just isn't recognised like T2 or T1 are. If you have suffered damage to the pancreas (as you state you have) then I'd imagine your gp did a test to measure the amount of insulin your pancreas is producing? A c-peptide level?
Were you told the result?
If you are deficient in producing your own insuluin, then you will need to inject it to make up for the shortfall.
Some meds can cause damage to the pancrease, such a prednesalone or prednisone. There are often responsible for inducing type 2 or 3 conditions.
Are you saying you have no blood glucose monitor at all? If you are taking insulin you should have been provided with one and strips. There is serious risk of hypoglycemia and serious risk to your health if you don't have one. You can die from a hypo.
Below is a link for type 3, there are a number of ways you can get on that list. Perhaps one will sound familiar to you. Mine is the result of both cystic fibrosis and prednesalone use long term.
COVID - If you have multiple health conditions then consider yourself high risk and practice the advice for all high risk people. I'm in that boat also.
https://www.diabetes.co.uk/type3-diabetes.html
I also take creon, in a way for me it's like being closer to T1 but it varies from person to person. Blood glucose management can be difficult due to varying degrees or food absorption and amount of insulin present, but I find eating to a pattern for me works rather well and makes levels more predictable. Doesn't always work out of course, but you learn to find a way over time.