Symptomatic breast referral

Hi all, 

 

I'm going out of my mind with worry and would like a bit of reassurance or advice. I found a link in my left breast, but it does seem to attach to lumpy tissue that goes from one side to the other and the right breast is very similar, without such an obvious lump. I've had 3 breast reduction surgeries so I'm sure it's just scar tissue, but I can't help but worry. 
 

I went to the GP to be sure and she agrees that it feels like scar tissue and it does move. She also said they both breasts feel similar and she's not at all concerned. She has referred me to the breast clinic as standard and said it's for my own reassurance and so that they can do an ultrasound to show me where the scar tissue is so that I know what to look out for when self examining. I just can't help but feel sick with worry. I have 3 children with one only being 3 months old. A week Wednesday cannot come quick enough