Its symptoms include pain, tingling, numbness and muscle weakness. Nerves respond with altered sensations like tingling and numbness. Symptoms include tingling, numbness, and weakness, along with pain. Patients present with weakness of legs, arms, trunk, tingling and numbness that progressively worsens. Complications include ulceration, infection, nerve weakness or numbness and swelling. Common side effects include itchiness, hair loss, swelling, vomiting, muscle pains, numbness, and headache. Nonspecific symptoms may feeling tired, numbness and weakness. This can manifest as numbness, reduced sensation or burning neuropathic pain. Symptoms may include pain, numbness, or weakness in the arms or legs. This pain is usually constant with a burning sensation and numbness. This may present as numbness or paresthesia. Occasionally side effects include headache, numbness, and sleepiness. It may be associated with neurological dysfunction, such as weakness and numbness. Less commonly there may be a feeling of the world spinning, numbness, or muscle pains. Panic attacks typically present with hyperventilation, sweating, and numbness.