When the fiber is damaged, the muscle tissue will become bigger. If you seldom exercise to this extent, then the swollen muscle tissue may press the nerves at this time, and you will feel numb.
The solution is to have a good rest, eat more dark meat, such as beef, supplement the necessary vitamin A, iron and protein, and continue to exercise after three or four days, when the organization is strong again.
Do you use your left hand? I've been in this situation. I asked the coach.
It doesn't matter, mainly because you haven't exercised for a long time. Most people use their left arm less, so many people's right arm is thicker than their left arm, which is also the reason. Therefore, under the same amount of exercise, the left arm is prone to excessive exercise. If you have this phenomenon in your right arm, it must be the reason why your right arm is inactive.
Turn your arm around when you're okay. Don't feel pain, stop exercising. You can keep practicing for a long time mainly because you haven't exercised for a long time. Pay attention to combining work and rest. Stick to it and do it for five minutes every day and you will see the effect.