Feeling restless and shivering after walking, despite normal sugar, cholesterol, and blood pressure levels, could be related to side effects of medications such as Levipil (Levetiracetam), which is used to treat seizures. This medication can sometimes cause symptoms like dizziness, weakness, or tremors that might explain your sensations.

Other possible causes include muscle fatigue, mild anxiety, or your body's reaction to temperature changes during or after walking. It’s important to monitor these symptoms closely, especially if they persist or worsen.

• Ensure you stay well-hydrated and avoid overexertion.
• Dress appropriately for the weather to prevent chills.
• Keep track of any new or worsening symptoms, such as increased restlessness, mood changes, or physical weakness.

Since these symptoms could be related to your medication or other underlying issues, I recommend consulting a neurologist or your prescribing doctor to review your treatment and evaluate your symptoms safely. If you experience severe shaking, confusion, or other concerning signs, seek urgent medical attention.