tried replacing this line
Readings = temp, hum, pres, AnalogValue1, AnalogValue2, AnalogValue3, AnalogValue4, AnalogValue5, DigitalValue1, DigitalValue2, DigitalValue3, DigitalValue4, DigitalValue5;
with this line
String Readings = String(temp + hum + pres + AnalogValue1 + AnalogValue2 + AnalogValue3 + AnalogValue4 + AnalogValue5 + DigitalValue1 + DigitalValue2 + DigitalValue3 + DigitalValue4 + DigitalValue5);
but that gets me no where