I woke up yesturday and the fatty part of my thumb that connects to my hand is swollen. What could be causing this?
Various things could cause this. You could have inadvertently rolled over on it while you were sleeping. Carpel tunnel syndrome can cause swelling. Arthritis often causes increased swelling in the morning as well.
The key with this swelling is if it continues. If you recently injured it the swelling should go down over time...if it doesn't then something more systemic may be happening and you should get it checked out by a doctor. Good luck!
Here are some links on our site that might be useful:
Why Yoga Can Help Soothe Many Types of Chronic Pain
Using Mindfulness Meditation to Alleviate Physical Pain
Everyday Ways to Protect Your Joints