How Can Bed Wetting Be Managed In A Child With ADHD?

My son just turned 7 in December. He has been diagnosed with ADHD and mood disorder due to the medication he takes for the ADHD. He is on concerta, a mood disorder med, and an anti-depressant. He is usually a very happy child but since very early on, he always seems to over react over the simplest things. I thought he would grow out of it eventually. The medication has worked tremendously with everything but he still wets the bed and still wants to make sure everyone likes him. Any advice with the bed wetting or the crying/wining spells? Should I take him back to his therapist or is this something I should go to his regular family doctor to see if any more tests are needed (he has been tested twice for diabetes). Any point in the right direction would help tremendously.