The reversibility of stretched earlobes depends on various factors, including the size of the gauge and the individual's unique physiology. In general, smaller gauge sizes have a higher chance of closing up completely, while larger sizes may result in permanent stretching. If you wish to close up your stretched holes, it's best to consult with a professional piercer who can provide guidance based on your specific situation. Keep in mind that closing stretched earlobes takes time and patience, and the results can vary from person to person.