This is because of wrong postural habits.. Nerve compression leads to numbness /tingling /pain in the arms/hands /fingers. Specially when you bend your neck and sit in the slouched posture.
Next Steps
Go to a physiotherapist.. Ultrasonic therapy +IFT +Heating therapy +exercises will be helpful.
Health Tips
At home.. Rest +hot water fomentation +pain killer gel +no long sitting +no forward bending +no weight lifting +avoid cold exposure +no manual exertions +no long travelling +sit tall.