painful

https://list25.com/25-worst-pains-humans-can-experience/

https://emedicine.medscape.com/article/1413565-overview

https://www.webmd.com/a-to-z-guides/what-is-dercum-disease

https://www.webmd.com/pain-management/guide/complex-regional-pain-syndrome

https://en.wikipedia.org/wiki/Penile_fracture

https://en.wikipedia.org/wiki/Post-dural-puncture_headache