Your symptoms suggest a possible Ankle sprain or overuse injury, so first rest the ankle, avoid running, apply ice, use compression bandage, and keep it elevated. For pain, you can take Paracetamol or Ibuprofen (if no stomach/kidney issues), and use a topical gel like Diclofenac. If you cannot bear weight or pain is severe, get an X-ray and consult an orthopedician to rule out fracture.

Your symptoms sound like Wrist drop, often caused by temporary nerve compression during sleep; most cases improve gradually over weeks. Start gentle exercises like wrist extension (lifting the hand up with support from the other hand), finger stretching, and making a fist repeatedly, doing them slowly 2?3 times daily without pain. You can also use a wrist splint to keep the hand in a normal position and avoid pressure on the arm while sleeping. If there is no improvement in 2?3 weeks, or weakness worsens, consult a neurologist or physiotherapist for proper evaluation and guided therapy.