Causalgia

Nature

Complex regional pain syndrome (CRPS Type 1 and Type 2) is a severe form of chronic pain, in which pain from a physical trauma outlasts the expected recovery time. The symptoms of types 1 and 2 are the same except type 2 is associated with nerve injury.

Usually starting in a limb, CRPS manifests as pain, swelling, limited range of motion, and/or changes to the skin and bones. It may initially affect one limb and then spread throughout the body; 35% of affected individuals report symptoms throughout the body. Two types are thought to exist: CRPS type 1 (previously referred to as reflex sympathetic dystrophy) and CRPS type 2 (previously referred to as causalgia). It is possible to have both types.

Amplified musculoskeletal pain syndrome, a condition that is similar to CRPS, primarily affects pediatric patients, falls under rheumatology and pediatrics, and is generally considered a subset of CRPS type I.

Source: Wikipedia

Broader 
Pain
Type 
(G) Very specific problems