Generalized weakness can stem from simple causes like dehydration, poor sleep, or nutritional gaps, as well as vitamin deficiencies (such as Vitamin D or Vitamin B12). Instead of starting specific medications immediately, focus on adequate hydration, balanced meals, and rest. A daily multivitamin or B-complex supplement can support energy levels safely. However, because weakness can also point to underlying conditions like anemia, thyroid imbalances, or electrolyte issues, it is highly recommended to consult a healthcare provider. They can perform simple blood tests to identify the exact cause and suggest targeted treatment without any guesswork.