There's situational awareness and then there's paranoia
Its only paranoia if 2 additional circumstances are met - or one specific condition occurs
1. other people know you are doing it
2. nothing happens
If something happens, it wont be paranoia, it will be preperation, if nobody notices your "preperation" then its not a problem.
The one specific condition it would be paranoia is if it is restricting your life. Such as, you wont go out of your house. Then its starting to qualify as an illness...