I read this information on a friend's Facebook page.
Hard to explain to someone who has no clue. It's a daily struggle being in pain or feeling sick on the inside while you look fine on the outside. If you know someone you know has an invisible illness (Chron's, PTSD, Anxiety, Bipolar, Depression, Depression, Diabetes, Lupus, Fibromyalgia, MS, ME, Arthritis, Cancer, Heart Disease, Epilepsy, Autism, MD., Histinocytosis, etc.) "Never judge what you don't understand".
Too many family members and friends suffer silently with one or several of these illness. Please pray for silent sufferers in our lives.