Some ten years ago I used to write very frequently on my blog. These were mostly small articles related to things happening to and around me. It felt good to create something from scratch. Once in a while, there were messages of appreciation from readers. These messages made the effort worthwhile. They pushed me and motivated me to write better.
But then, the frequency of my writing started dropping. Lack of time and motivation were the main reasons. But, I also knew deep within me that these reasons were false. Once the rhythm of writing breaks, it is difficult to get back on track. I never got back on track and a decade passed.
There are many thoughts inside the mind. One thought leads to another and it goes on and on. Writing forces you to catch hold of one thought and express it clearly on a sheet of paper. It goes through a distillation process when it flows through your pen on the paper. Being a social animal, we need to communicate our thoughts to others. Thoughts are abstract. Making someone feel the same emotions we are feeling through some black smudges on a white background is magical.
At the end of a good day of writing, you feel lighter in your head and heart. This week an old friend reached out. We spoke of old times when both of us wrote blogs. We missed those times. Those restless times, when the urge to find expression dominated our decisions. Things have changed for both of us now.
Or is it just another excuse?
Needull in a haystack 
Ah, I just felt it was me scribbling this.. used to write almost daily earlier.. but now as you said “Once the rhythm of writing breaks, it is difficult to get back on track. “