if your left handed it is possible that you exert more force in the left than the right hand
sharp pain in my left hand
I think any pain in ”any hand” causes pain in both hands.
Because your a retard
If your left hand and wrist veins get huge and pain begins you need to see immediate medical condition. You may have a clot.
One symptom of a left bone crack in your hand is severe pain. Also, the inability to move your hand is another symptom.
when we stop excersing our heart and pulse beat slowly
It may mean that you injured your hand. If pain continues you may want to see a physician.
by excersing
could the signs of a ectopic pregnancy be numbness in ya hand and left arm and abdominal pain on ya left hand side at the bolttom of ya stomach and bad dizzy spells and headaches
Question is a little too vague, more details would be needed.
See a doctor!
I usually get this pain when I have not been drinking enough water. Try to drink a liter a day for a week and if the pain continues go to a doctor. Good luck.