pain vs excruciation

Other hyponyms of pain include ache, aching, agony, suffering, arthralgia, burn, burning, causalgia, colic, gripes, griping, intestinal colic, chest pain, chiralgia, distress, dysmenorrhea, glossalgia, glossodynia, growing pains, keratalgia, labor pain, mastalgia, melagra, meralgia, metralgia, myalgia, myodynia, nephralgia, neuralgia, neuralgy, odynophagia, orchidalgia, pang, pang, sting, photalgia, photophobia, costalgia, pleuralgia, pleurodynia, podalgia, proctalgia, referred pain, renal colic, smart, smarting, smartness, sting, stinging, stitch, rawness, soreness, tenderness, thermalgesia, throb, torment, torture, ulalgia, urodynia.