Please tell me, could I get chronic infectious diseases from eating food with unsanitary utensils?

Good hygiene is best. In our world, we are exposed to germs all the time -whether we're actually aware of that or not is a different story. 'Dirty' utensils are one of those things that u hope you don't find out 'after the fact' that u may have been using - but hopefully you're relatively healthy & your immune system 'already' took care of it. In very rare cases 'yes', u could be exposed to something, but I think ur OK.