I have read through TITP and I have to admit I feel a sense of hopelessness facing the medical establishment. But here is my experience today:

Thin privilege is getting ready for your gyn appointment, the first one in 15 years, and not scrubbing yourself raw because you’re afraid of being judged as slovenly or dirty, or being near to tears at the prospect of having to explain to the doctor what your problem is and expecting him tell you it’s because of your weight, and then just not helping you. Because when you’ve seen your regular doctor, every problem you’ve had he just says, “It’s because of your weight,” and then that is the end of it. So your hip hurts and doesn’t have the full range of motion, but it never went past an Xray, and your lower back hurts every day, suddenly after a lifetime of never having back problems, but it didn’t even get as far as an Xray. Because you’re fat, fatty. You brought this on yourself.

Thin privilege is being treated by your doctor for what is actually wrong with you.