ちくちく痛む[chikuchikuitamu] to prickle
哀痛[aitsuu] sorrowing with the bereaved
圧痛点[attsuuten] pressure point
胃痛[itsuu] stomach-ache
筋肉痛[kinnikutsuu] muscular pain

苦痛[kutsuu] pain
腰痛[youtsuu] lower back (or hip) pain
手痛い[teitai] severe
陣痛[jintsuu] labour (birth) pains
精神的苦痛[seishintekikutsuu] mental anguish

胃液[ieki] gastric juice
胃炎[ien] gastritis
胃下垂[ikasui] gastroptosis
胃癌[igan] stomach cancer
胃鏡[ikyou] gastroscope

胃散[isan] stomach medicine
胃酸[isan] stomach acid
胃弱[ijaku] dyspepsia
胃洗浄[isenjou] stomach pumping