Numbness in right palm and fingers.

Since about 3 months I was facing numbness and tingling in both my wrists whenever I use my phone (I am a leftie) or drive my car. After a 10 day vacation without much phone usage or driving the numbness went away. But as soon as I returned to normal schedule it has come back. Affected areas are right part of the right wrist, index middle and part of ring finger of right hand, I cannot press anything with my left index finger it has become totally strengthless. The other 3 fingers mentioned above feel swollen and numb with no sensation. Left side of right palm is also numb. Numbness increases in both hands at night. I have a desk job and use a laptop in office all day. Are these early signs of carpel tunnel syndrome? What can I do to relieve myself of these symptoms and what is the root cause? Please help..