Hi Blue,
The "numbness" you describe isn't indicative of being stable while feeling a healthy range of emotions. Life is full of emotions. "Stability" is holding steady while feeling a range of emotions.
Meds and/or moods, reactions to some life events, can cause us to feel "numb."
Sometimes, I can withdraw emotionally in response to feelings about life (including grief/sadness/disappointment, etc.).
Do you know why you are feeling so "numb?"
I hope you feel better soon.

WC