When doctors don’t believe your pain.
A lot of people with long term illnesses talk about the difficulties of being diagnosed. Chronic pain illnesses are often misunderstood even by doctors making diagnosis a lengthy process. I had a similar experience when trying to get diagnosed with Lupus.
A few creators at Buzzfeed talk about their personal stories. Videos like these are important in making sure you persevere. You know your body more than anyone else. If you feel something is up, get a second opinion.