Short version: You might not.
Type 2 diabetes can go undetected for up to 10 years, and I think personally that’s pretty much what happened to me.
In my case I did start noticing symptoms a little while ago that I knew corresponded with diabetes, such as constant thirst, peeing more often, (kind of goes hand in hand with drinking more often,) and chronic fatigue. I had to take several days off work due to simply not having the energy to get there, much less do a day’s work.
More than anything, it was the constant thirst that tipped me off to the possibility I had diabetes and made me go to the doctor to get checked out. At work I was having to get a drink almost after each customer I spoke to. I’ve pretty much always drank a lot, but noticed it had increased exponentially.
In my case I was more at risk to diabetes due to hereditary high cholesterol, as well as being overweight and drinking far too much alcohol.
Since diagnosis I have almost completely cut out alcohol, (An occasional glass of red wine is about it now – red wine is the only low GI alcoholic beverage,) given up potatoes, white pasta,rice and bread except small amounts of eye bread.
It has been a big change, but I’ve already noticeably lost weight and on the whole I’m feeling better, although I’m writing this on a particularly bad day – I had to take the day off work, went back to bed and didn’t wake up until after 11am and I’m currently sat in the sofa without the energy to do much more than write a post on my phone and drink tea.
Generally there have been more good days than bad of late, although a day at work, although my job is not physically demanding, leaves me exhausted nonetheless. Hopefully once I’ve finished my course of meds and have gotten better at managing things, I will be on a more even keel.