Welcome to the forums.
It is largely a matter of style and logic. If the sentence became difficult to understand when "and" is omitted, then it should be included. Otherwise it comes down to author's preference as to how the sentence will sound. Omitting "and" in many of the sentences you give will give them a more immediate narrative effect, but also makes them more staccato.
If, when you are writing something, youi find yourself in doubt, you are welcome to ask assistance from us