<s>[INST] We recently got a trampoline. Our 8 year old son has been complaining of chest discomfort only while jumping that he says feels like his heart is getting pulled up and down. He has asthma, so he used his inhaler thinking it may be related, but it persisted. it stops immediately after jumping. We had him jump just on the ground and he had the same type of feeling. Any ideas? [/INST] Hi, don't worry. This symptom of your kid not able to jump is all a part of his asthmatic condition. When a kid is asthmatic he has a associated symptom that is exercise induced asthma or more appropriately stress induced asthma. What I would recommend is, trampoline was not a good idea for him. But please don't discourage him if he wants to go out and play. But ensure he takes his inhaler promptly. It is all a matter how f managing rather than worrying. Hope this s has helped.Tc </s>