progressive weakness

• fatigueWeariness from prolonged exertion
• exhaustionState of utter depletion
• declineDecrease or refuse
• deteriorationProcess of declining quality
• wastingUsing poorly, inefficiently

atrophy · frailty · debility · fading · withering · muscle · tremor · numbness · paralysis · collapse · creeping · gradual · insidious · chronic · degenerative · diagnosis · wheelchair · cane

• motor diseasesALS, polio, motor neuron disease, Lou Gehrig's disease, paralysis