I have been using my buttons for a good long while, and they've worked just fine! But recently I have encountered some issues. #1: THEY DON'T FLIPPIN' WORK! #2: They seem to be "ghosting" meaning that I don't even have to touch them for them to "work." #3: If I touch the breadboard, it does the same thing as the button! Help!!
Your inputs are probably floating.
Show us a good schematic of your circuit.
Show us a good image of your wiring.
Posting images:
https://forum.arduino.cc/index.php?topic=519037.0