Why is it sometimes numb n dull in my hand n fingers but other times no symptoms n feel ok. Diagnosed with MRI confirmed c hnp n spine stenosis. Will I b ok?

You will b fine. It depends on how much the disc compress the nerve. Moving such turning your neck one way or the other may compress nerve more one way less the other. This should be discussed with your doctor. You don't want to wait too long to get it fixed. Then you will be fine.