I was just diagnosd with mctd rnp antibody of 1.9 and anachoice screen-positive the only symptom is joint pain in my hand/wrist (i do have carpal tnl?

Positive Labs: Positive labs are meaningless unless you have symptoms. At this point, your doctor is aware of the positive results and will likely follow your symptoms. The positive simply means you are at a greater chance of developing symptoms though not everybody does.

Not sure: It is difficult to truly assess whether you have mctd or not. The presence of the rnp antibody in your blood does not mean anything by itself; you must have symptoms that can be attributed to this. Not having mctd does not rule out other autoimmune disease. Technically, when I am confident of a mctd diagnosis, i see some muscle weakness, mild raynaud's/sclerodactyly, and joint stiffness/swelling.