Try here...
http://www.lloydspharmacy.co.uk/home-page/heal th_updates/diabetes_health.htm
It's a Lloyds Pharmacy site which goes through symptoms:
-You are always thirsty
-You pass water excessively
-You always feel tired
-You sometimes suffer from blurred vision
-You often get cramps at night
-You often get infections
-Your wounds heal slowly
-You often get thrush or genital itching
-Your hands and feet often feel numb
It also gives details of it's free testing service.
This could also help...
http://www.diabetes.co.uk/diabetes-symptoms.ht ml
Definitely go and get it checked out and keep an eye on things if you have any of the risk factors...
-You have a parent, brother or sister with diabetes
-You are overweight
-You do not do much exercise
-You have given birth to a baby weighing more than 4kg (8lb 8oz)
-Your blood glucose was high when you were pregnant
Hope this helps x