Referred to breast clinic

Hey, so I've had a doctor's app today as I had found a pea sized lump in my left breast close to my nipple inner side. My left breast has become very veiny non on my right at all. Doc examined me and felt the lump said it's around 2cm, checked all my lymph and said he couldnt feel any further lumps.

He has made an urgent referral and said I would receive an app within 2 weeks. Trying not to think the worst but it's hard not too it's like a constant nagging feeling  

Not sure what I'm hoping for posting this, just feeling scared I guess.

Im 38 and have 4 children my mind is doing overtime!!