Afflicted - Suffering from a serious problem, illness, or pain, be it mental or physical.

writhe - Make continual twisting, squirming movements or contortions of the body

cramps - A painful, involuntary contraction of muscles

Burden - something you carry or withstand with much difficulty.

flinch - Make a quick, nervous movement of the face or body as an instinctive reaction to surprise, fear or pain

angst - A feeling of deep anxiety or dread, typically an unfocused one about the human condition or the state of the world in general

ordeal - A painful or horrific experience, especially a protracted one

wince - Give a slight involuntary grimace or shrinking movement of the body out of or in anticipation of pain or distress

excruciating - Intensely painful

agony - Extreme physical or mental suffering

torment - Severe physical or mental suffering

Bruise - To hurt someone emotionally or physically, leaving a lasting feeling of pain or vulnerability.