Hey you have beautiful dogs! :)
I hear you. You're a bit older than I am and lately I've been asking myself some existential questions, like is there anything else to my life, am I missing something, where do I need to go and what else do I need to do? I know it's crazy but sometimes I wish I'm young again or go back to events and situations in the past to change my choices. Though I know I've already tried a lot of things and been to many places, I feel like there's something else still missing...
I just remind myself that the best thing for me to do is just to move on and live in the present. Take care of myself, my health (physical and mental), my skin, and focus on hobbies that are rewarding. I believe these things that we're good at (signature strengths) will keep us busier and happier in old age. So I invest all my time currently on becoming good at something (other than my job).
RE: Life after kids - midlife crisis?!!