Being an introvert or extrovert depends on how you get your energy and recharge. If social interaction with a chronic illness tires you out (when it used to give you energy)….you could switch from being an extrovert to an introvert! You’re friends and family might not understand why you’ve become more withdrawn. Don’t feel bad. Help your loved ones understand that you just need to spend more energy recharging with down time. You need to make up for the energy stolen by your illness. Read this enlightening article from ProHealth.com for more insights:  Has Chronic Illness Turned Me Into An Introvert?