First of all - I'm not a doctor!
But I feel this is just a side effect or the medication that you're on...
Unless you change your medication, or find alternative treatments for your diabetes, this is just something that you'll have to deal with.
I would not recommend stacking one medication on top of another - especially without consulting your doctor to understand the interactions.
I'm really into alternative and natural therapies that actually cure illness rather than 'manage' them. Have you ever noticed that pharmaceutical companies rarely cure anything... They only 'manage' illness... There's more money in that!
Try a holistic doctor and do your research!