To be an artist doesn't mean that you only do one thing. It doesn't mean you only draw or paint. And it doesn't mean you can't have more interests except art. No one should expect anything from artists.
If we want and feel like to, we can for a time make works about one theme and after a while about another one and with a different technique and medium.
We, artists, aren't more different then musicians. They make different albums about different things. And that's totally fine. The same with artists. We are allowed to express ourselves the way we want and feel like to.
And it does not mean we have to do it every day or show only that. There might be days when we feel inspired and work for a week in a row and there will always be days we will feel like we can't or do not want to. And maybe we want to express ourselves in other different ways because with art we can not fully. For example, except art I love to express myself while I am writing or dancing. I write my own poems. I work with them in my art. I make my own choreography and work with it until I feel that time of my life is over.
You.should never expect anything from creative people. Let them do whatever they feel like to, let them post their photos, art, emotions, any thoughts or creative work. and appreciate, wonder, and at least try to understand.
P.s. And we all are allowed to have our time on social media. Even if we have a really busy schedule, even if we post something, art, sketch or any picture, it doesn't mean we have a time for even more things at that moment. We are working. Posting something doesn't mean we are lying in bed and doing nothing or just "doodling around". (If we, I say to you that we do not have a time right now to do your commission and you can not wait few months, then do not say if we/i am posting something it means we have a time for other big works.)