I am 41 years old. Weight 45kgs height 5ft 3inches. Suffering from asthma for last 10 years. I have to take budamate inhaler 2 puffs once a day. For few months I always feel weak, sometimes feel need to lay on bed but I have to travel approx 5 hours a day to go and come back from my office. Use to sleep for average 6 hours a day. Sometimes feel mild shivering and chest pain too. Sometimes feel nausea. Please advice me.