When I start getting that "Numb" feeling it's generally/ALWAYS because I am depressed. The ole "Why Do I Even Bother?"; "What's the Point, NOTHING will Change?" and the list goes on. Well, untill you drink or otherwise shut the noise off for a few hours.
What Can You Do About it? - Tough one. Little things, NON-Self Destructive Things, to make you feel better. Go to a TG Support group meeting. Nothing like knowing you are not alone to make you feel better. Try to stay away from toxic people... the haters, the ones that are against/ not supportive, of what you are trying to get a handle on. And the list goes on.
Believe me, I know ALL too well the negative self talk and it is a tough cycle to break. It comes a lot from just plain hating yourself for many reasons. For about 30 years I just plain numb to anything and everything besides DEATH. Probably the only thing that kept me alive.
How I began to feel again? By putting in a lot of hard work to learn who and what I am. Seven years later I know I still have a LONG way to go. But, after a few months I began to feel again. First sadness, loss, then eventually joy.