Definitions for epiphenomenal. Here are all the possible meanings and translations of the word epiphenomenal. Wiktionary(0.00 / 0 votes)Rate this definition: epiphenomenal(Adjective) Being of secondary consequence to a causal chain of processes, but playing no causal role in the process of interest. epiphenomenal(Adjective) Of or pertaining to a mental process which occurs only as an incidental effect of electrical or chemical activity in the brain or nervous system.
1 Stress: Stress can exacerbate digestive system disorders, which lead to pain on the right side of the chest. 2  Some key stressors are work, school or family and relationship problems. 3  Muscle Pulls: Pulls of the muscles or ligaments in the chest and injuries to the ribcage may lead to right side chest pain.
Inflammation of the pancreas can cause chest pain on the right or the left side. It often radiates to the back and the abdomen can be tender when touching. This is a serious condition and needs to be evaluated and treated immediately. Pancreatitis can be caused by alcohol use, gallstones, and blocked bile ducts.