Hello olliewillow, 

You are taking the right approach in trying not to overthink it but if you want to find out more about this and why this cyst has refilled, you could always give a call to your GP and ask them to explain it all for you. It is definitely worth flagging it with your doctor just to make sure this is to be expected and to put your mind at ease. 

I hope you will hear from others here too who have been in a similar situation and that they will share their experience with you. 

Best wishes, 

Lucie, Cancer Chat Moderator