How to fix digitalRead - arduino

Question

So my problem is that after like two readings of digital pin 6,7 the pin stays on forever for some reason here's my code. I can't seem to find why does it happen I tried to add some delay(x); but it didn't help .. never happend for pin 5 which is even more strange to me... any help will be appreciated
#include <Stepper.h>
int obstaclePin = A0;
int obstaclePin2 = A1;
int obstaclePin3 = A2;
const int button1Pin = 5;
const int button2Pin = 6;
const int button3Pin = 7;
const int stepsPerRevolution = 80;
Stepper myStepper(stepsPerRevolution, 50, 51, 52, 53);
Stepper myStepper2(stepsPerRevolution, 46, 47, 48, 49);
Stepper myStepper3(stepsPerRevolution, 42, 43, 44, 45);
void setup() {
myStepper.setSpeed(100);
myStepper2.setSpeed(100);
myStepper3.setSpeed(100);
pinMode(2,OUTPUT);
pinMode(3,OUTPUT);
pinMode(4,OUTPUT);
pinMode(obstaclePin, INPUT); // sets the sensor pin
pinMode(obstaclePin2, INPUT); // sets the sensor pin
pinMode(obstaclePin3, INPUT); // sets the sensor pin
pinMode(button1Pin, INPUT_PULLUP); // declare pushbutton as input
pinMode(button2Pin, INPUT_PULLUP);
pinMode(button3Pin, INPUT_PULLUP);
Serial.begin(9600); // initialize the serial port:
}
int counter = 0;
void loop() {
while(true){
if(digitalRead(button1Pin)==0){
counter = 1;
break;
}
else if(digitalRead(button2Pin)==0){
counter = 2;
break;
}
else if(digitalRead(button3Pin)==0){
counter = 3;
break;
}
}
while(counter!=0){
digitalWrite(2,HIGH);
digitalWrite(3,HIGH);
digitalWrite(4,HIGH);
//*******************************************************************************************************************************************************
if(counter==1){
if(analogRead(obstaclePin)<=400){
counter=0;
delay(100);
break;
}
Serial.println("Motor 1");
myStepper.step(1);
}
//*******************************************************************************************************************************************************
else if(counter==2){
if(analogRead(obstaclePin2)<=400){
counter=0;
delay(100);
break;
}
Serial.println("Motor 2");
myStepper2.step(1);
}
//*******************************************************************************************************************************************************
else if(counter==3){
if(digitalRead(obstaclePin3)==0){
counter=0;
delay(100);
break;
}
Serial.println("Motor 3");
myStepper3.step(1);
}
}
}

Answer 1

Debouncing the inputs is the solution here.