Couldn't see anything of concern in the first picture - but I think I see a whiff of bud rot in the other two... open that bud up and see if the discoloration goes inside... if it does, you most likely have botrytis.. bud rot... and you should never EVER smoke a bud that has it... can cause bad lung damage. Here's an article that details what steps you should take if it is indeed botrytis (it mainly focuses on prevention since there's not much you can do once you find it!) https://www.cannaconnection.com/blog/18536-how-to-deal-with-prevent-bud-rot-in-cannabis-plants
That being said, pitch the bud you've found the rot on (if indeed you find it)... keep your utensils and hands sterilized... be exceedingly aware as you trim the rest of your plant because it's almost guaranteed that if what you found IS bud rot, there will be more to be found... If the bud is large enough and you can simply cut the rot out without having to pitch the entire bud, again sterilize all your equipment and your hands and spray the site with a 1% H202 solution.
Good luck...