My joyful Son

Hello everyone. My energetic 7-year-old son who was always full of joy and playfulness, but for the past 10 days, he has been suffering from severe headaches and is gradually becoming more and more listless. Despite visiting the doctor five times, we still have no diagnosis, and I cannot bear to see him in this state. As you know, medical costs in the U.S. are extremely high, so I kindly ask for your help to support my son, as I am currently facing financial difficulties. As you can see, he was once so enthusiastic, but now he is very calm