Hard to explain to someone who has no clue. Or doesn't believe you. It's a daily struggle being in pain or feeling sick on the inside while you look fine on the outside. Please put this as your signature for at least 1 hour if you or someone you know has an invisible illness (Pancreatitis, Crohn's, PTSD, Anxiety, Bipolar, Depression, Diabetes, LUPUS, Fibromyalgia, MS,Lupus, ME, Arthritis, Cancer, Heart Disease, Epilepsy, Autism,M.D. Evan Syndrome etc.) " Never judge what you don't understand.