Hi,
It could be Carpal tunnel syndrome . The median nerve provides sensation to the palm side of the thumb,
index, middle fingers, as well as the inside half of the ring finger and muscle power to the thumb. When this nerve becomes pinched, numbness, tingling and sometimes pain of the affected fingers and hand may occur and radiate into the forearm. excessive repetitive movements of the arms, wrists or hands can aggravate the carpal tunnel bringing out the symptoms of carpal tunnel syndrome.