Feeling lost after my hysterectomy

Long story short: after 3,5 years of extreme pain and bleeding, I had a hysterectomy last year in March.

I already know for more than 10 years I wasn’t going to have children. Did the IVF and all the treatments. I truly believed I had dealt with the grief and was happy with the life I had built instead.

A thriving company, fun life.

After the surgery it hit hard that I will not be a mum. (am also single but never had a problem with that).

Now I only feel lost. Lost the motivation to built my company and to take on new things. I only feel tired.

My question: is this just in my head or is it possible that not having a uterus causes this heavy thinking and being sad?