Hello doctor, I have question that while I applied for cruise job they have done some test which show all is well. But few month ago my fuel of 2wheeler exhausted n I have to push the vehicle across high bridge, while doing this felt totally exhausted, lots of sweating, n felt like yarning, n weakness. What would be problem. Same think was happened while I was small, same think happened a week ago. While in childhood time doctor told some weakness, either problem from heat. Please suggest?