Disconnected

I have a feeling of disconnection going on today; I'm tired, but not. I feel hopeful, but at the same time there is a thin layer of malaise covering every thing I do...I cannot shake it off just yet, but I am smart enough to not ignore it.
Could it be the Anniversary?
I can remember last month feeling out of sorts for a day or two---perhaps even a week---and my husband pointing out to me, oh-so-matter-of-factly, that I was depressed.
"Depressed?!" I railed against the notion. Why would I be depressed? Summer is by far my favorite season. Depression is for Winter, finding its place on those long, snowy nights, wrapped up in a thousand blankets and the strange belief that Spring will never come again. Then my always astute other half reminded me that August was now laden with losses for me: the day my Stepmother died. The very next day marks my Grandmother's passing as well. An Aunt thrown into the mix, and who was I to expect to escape the long reach of the calendar?
I mulled it over. Did it make sense to me that just because it was "that time of year again," that I was to be steeped in some inert sadness? Did the specific date on the calendar mean that I missed my Step or Grandmother more than usual? Could I sense something inexplicable, such as their Spirit calling out to my own?
I'm not sure what I believe about such things; I just know that these past few days I have felt saddened all over again by the losses we sustained on September 11, 2001.
Could it be the Anniversary?