Below are a few resources which might help with your general well-being as we now know that factors like stress can impact on your physical health.
A useful resource if you would like some guidance learning meditation techniques.
3 Apps that you can download to your phone - all are aimed to gain a better understanding of how deep slow breathing techniques can calm your brain and therefore your pain. Headspace is free for the first 10 days, but both Calm and Breathe are free.
This book is available to download onto a kindle like devise. It is an excellent resource to help you learn a an optimal way of breathing.