No, its not normal! Do you feel comfortably? It also depends on if you are religious! If yes then pray! Its normal! It will help you! Try it :) its okay if you carry your knife if you feel better like this, but do not try to take it out of your pocket.
Have it in your pocket just to feel better and do not take it out if you do not see anyone with your eyes! It make cause something bad! Hope I helped! Remember to pray :)