I have suffered on a mild level the same thing. I am a repiratory therapist and understand the physics of the atmosphere. I need to explain that it may not be due to a depressive order per/se. I feel it has lot to do with highy sensitive people. For me I can tell you when the low is coming before the weather channel. My symptoms are feeling of being spacy and that is due to a drop in the partial pressure of oxygen related to the drop in the atmospheric pressure. From the highly sensitive side, I get a feeling that something is about to happen that is nothing more than the flight/fight response. To be honest something is happening and that is the drop in pressure. That triggers the anxiety. So I must say I do not take medications for it because I understand the phemenon. Many doctors just prescribe. I feels when one understands the affect there are other ways to cope. Try googling " highly sensitive people". We in this group sense things so readily it keep you in the flight or fight syndrome which can exhausting leading to feeling the blues.
Paul