hello Job19,
I have depression and at one long period, I was emotionless.
A great friend, asked me how I felt and my answer was 'flat'.
She even asked if I had emotions.
I could remember emotions, interests and caring but it was like it was another brain a detached memory.
My friend went on to share her 'flat' emotionless time with me.
She was high up on a plateau, and looking down in different directions at the landscape and each view had different possibilities.
When the time was right she found her way off the flat plateau.
I used the imagery of this perspective and found the flatness is a time to explore options and consider different perspectives/paths, not to be hurried as it can not be forced and accepting this was my life at this time.
(two years) later I began to feel emotions again. Sometime I miss the emotionless times.

My psychologist calls this avoidance.
I am also blessed with great friends, therapist and Pdoc. And my journey continues.
I wish you well

G