Keep up the exercise - that's helping you a lot and...
From the MayoClinic.com:
The benefits of relaxation techniques
With so many things to do, relaxation techniques may take a back seat in your life. But that means you may miss out on the health benefits of relaxation.
Practicing relaxation techniques can improve how you physically respond to stress by:
* Slowing your heart rate
* Lowering blood pressure
* Slowing your breathing rate
* Reducing the need for oxygen
* Increasing blood flow to major muscles
* Reducing muscle tension
You may also gain these overall health and lifestyle benefits from relaxation techniques:
* Fewer physical symptoms, such as headaches and back pain
* Fewer emotional responses, such as anger and frustration
* More energy
* Improved concentration
* Greater ability to handle problems
* More efficiency in daily activities
More... (link)
You should find that if you practice relaxation your BG should be a bit lower too. I've seen it work for me (lower BP) and even got a raised eyebrow from my doctor. It's free and it feels good - give it a shot!