Patient presents with a chief complaint of generalized weakness, asthenia, fatigue, and malaise.  Onset of weakness is reported as gradual progressive over the past [timeframe - e.g., two months].  Patient denies any localized weakness, but describes difficulty with activities of daily living ADLs such as climbing stairs, carrying groceries, and prolonged standing.  Review of systems ROS reveals associated symptoms including decreased energy levels, lethargy, and easy fatigability.  Patient reports adequate sleep duration but denies restorative sleep.  No fever, chills, weight loss, or night sweats are reported.  Medical history significant for [relevant medical history - e.g., hypertension, hypothyroidism].  Surgical history includes [surgical history].  Current medications include [list medications].  Physical examination reveals normal vital signs.  Neurological examination is grossly unremarkable with no focal deficits noted.  Muscle strength is globally reduced, though no distinct atrophy or fasciculations observed.  Differential diagnosis includes metabolic disorders, endocrine dysfunction, anemia, vitamin deficiencies, chronic fatigue syndrome CFS, deconditioning, and depression.  Initial laboratory workup ordered including complete blood count CBC, comprehensive metabolic panel CMP, thyroid stimulating hormone TSH, and vitamin D levels.  Patient education provided regarding energy conservation techniques and importance of follow-up.  Plan to evaluate lab results and consider further investigations including Lyme disease testing, autoimmune panel, and referral to specialist if indicated based on initial workup.  Diagnosis: General weakness R53.81.