Not sure if I’m over worrying

Hello

I recently noticed swelling coming and going in both armpits. And now a lump which has been there two months in right armpit, which aches sometimes and that right breast hurts more when palpating. I spoke to GP online, They referred me to breast clinic and I am waiting a month now and appointment is on 12th. I am also anaemic currently and very tired.  Part of me is anxious and googling what it could be but the other doesn’t want to waste the doctors time and keep wondering about cancelling the appointment.

anxious or two anxious

thank you  I don’t want to speak to any family or friends as I may make them worry unnecessarily. 

thanks for listening