Girls, could you please tell me if anyone has had something similar? A…

Girls, could you please tell me if anyone has had something similar? A child, 7 years old, started a very mild cough in April, but it's hard to call it a cough. It seems like he choked, there's no wheezing or anything. It was barely audible at first. Then it disappeared. Doctors were consulted, they said it might be psychological, the psychologist couldn't find the cause. And now it reappears periodically. Especially when eating or just lying down and can cough for 10-15 minutes. Lately, it has worsened, these attacks happen every day. And recently, the pediatrician was consulted, too, they waved their hands. I don't even know where to turn