Consult a physiotherapist or orthopedic doctor because proper diagnosis is required.
Next Steps
consult ergonomist for workplace modification.
it's necessary to avoid reoccurrence because the position of your wrist while typing should be proper to avoid more stress on the wrist joint.
Health Tips
Do icing 10 to 15 min. every 3 to 4 hours.
wear wrist splint to avoid movement at the wrist, then follow Dr. advice about whether or not continue using a splint.