Hi,

i am experiencing breathlessness continously for almost a month plus now. It is like I can breath in and out normally but the oxygen does not seem to be able to get in. Sometimes its still ok but sometimes it can get worse. But it does not reach the point where I am panting. Does anyone knows what can be the cause? I do not have asthma before.

Does working whole day everyday at high altitudes cause problems? I am currently working at 27th storey and I am wondering if it is a contributing factor. Thanks!