I am a very skinny guy, 180cm tall, weigh 63kg. Even being as thin as I am, I had started to develop a potbelly. So I decided to do small rounds of working out about 10 days ago whenever I can, which included only two things - push-ups, and sit-ups.
This went pretty okay for a week - I used to do them both alternately at least once a day, sometimes more, intermittently.
But, about since about three to four days, I'm feeling slight pain in my left palm. I'm attaching an image below to indicate specifically which part of the palm. It always happens only when I go DOWN to do the push-up, not when I push. And it sort of feels like a nerve attached at that point from inside the palm is being pulled.
Does anyone know why this could be happening? It is extremely frustrating that I out of the blue, can't do push ups now because of this and I could just 10 days ago.I really want to stay in shape, as much as I can.
This is the image: