I would like to get my insulin levels checked to see if my insulin levels are spiked. Blood sugar level is the last thing to increase so for many people a fasting glucose test detects diabetes too late. Long before your blood sugar rises, your insulin spikes. High insulin levels are the first sign that can precede type 2 diabetes by decades. A two hour glucose tolerance test can help detect high insulin levels. This test measures not only glucose but also insulin levels. I went to my GP to ask for this test to be done and they said that the NHS doesn't check insulin levels. She said that i can only have my blood sugar levels checked and only would only have insulin levels checked if it's necessary. The problem with this is that you can have normal blood sugar levels but high insulin levels. If i just get my blood sugar levels checked and they are normal then i still won't know if i have high insulin levels. This is crazy. Does anyone know of any good places to get my insulin levels checked?