Pain down arm

Hi Sca28 welcome to the forum and so glad that at least the surgery is past for you.

There is such a thing after this type of surgery called Cording this sounds like it could be the case for you with that pulling sensation you describe. I have inserted a link below to some information that Macmillan has on cording for you to read through. It will go away but it may take time and may need treatment from a physiotherapist.

.Macmillan information re cording

See what you think and  maybe a call to he Breast Nurse might be an idea and see what they say as they may be able to make a referral for you direct to the  physio.

Dont stop the exercises but dont overstretch either do what you can within your own limits until someone can have a look for you.

Best  Wishes for now.x 

Thank you so much for the information,  I'm going to have a look straight away xx