Hi, your question is not very well prepared, but I will try to answer.
You said that you are a young woman who describes to be concerned about the
numbness in your hands as you feel palpitations.
The cause of these sensationsis is the epinefrin effects. When you are stressed, anxious or just exercised a hormone called epinefrin is released in your blood. It's effect accelerate your heart beat, raise blood pressure, palpitations and could cause the numbness in your hands that you reported. This hormone works only for a few minutes, so if your stress goes away or if you rest for some minutes the epinefrin effects goes away too.
Therefore, if necessary, we must treat
anxiety, control stress to ease those feelings. I suggest you look for a
psychologist to help you with these problems. Taking care of these causes, it is very probable that the numbness and palpitations diminish or even go away.
Hope I have answered your question. If you have any further questions I will be happy to help you. Wish you good health.