Some books, blogs, and other resources I have found helpful.

Anxiety

The Mindful Path to Self-Compassion. By Christopher K. Germer.

The Mindful Way through Anxiety. By Susan M. Orsillo and Lizabeth Roemer.

Inflammatory Bowel Disease

GI Monitor app: Helpful for keeping track of symptoms. 

My Crohn’s and Colitis Team: Social network for people with colitis and Crohn’s.

Crohn’s and Colitis Foundation of America: Great resources and support groups for those suffering from these diseases.

Introversion

Quiet: The Power of Introverts in a World that Can’t Stop Talking. By Susan Cain.

The Introvert Advantage: How to Thrive in an Extrovert World. By Marti Olsen Laney.

Quiet Revolution Blog

Meditation

Full Catastrophe Living. By Jon Kabat-Zinn.

Wherever You Go, There You Are. By Jon Kabat-Zinn.

If you are interested in mindfulness meditation, I highly recommend the Buddhify app. It has many different meditations for a variety of situations (feeling stressed, dealing with pain, traveling), as well as general meditations. I have tried several different meditation apps and this one is by far my favorite.