Hidden disabilities: Pain beneath the surfacepublished at 09:50 British Summer Time 19 July 2017
Imagine having to inject yourself thousands of times over the course of your lifetime, but never talking about it to anyone.
Many people live with hidden disabilities - conditions which don't have physical signs but are painful, exhausting and isolating. Sympathy and understanding from others can often be in short supply.
BBC Radio Kent's Erika North explains what it's like to have a hidden disability.