I'm a bit concerned about this shortness of breath I keep experiencing, especially after 3 pm nearly every day. I find myself needing to take deep breaths or breathe through my mouth, and sometimes my chest hurts because of it. I've been dealing with this off and on since 2014, but it wasn't as frequent back then, and my doctor said I was fine. Now it's happening daily, and I'm not sure what to make of it. Is there something specific that could be causing this? I drink water regularly and try to stay healthy, so it's puzzling why this keeps occurring.

The recurring shortness of breath, chest discomfort, and need for deep breathing or mouth breathing, especially after 3 pm daily, may indicate underlying conditions such as asthma, chronic obstructive pulmonary disease (COPD), anxiety, or cardiac issues, and warrants a thorough medical evaluation, including pulmonary function tests, echocardiogram, and blood work, to determine the cause and appropriate treatment.