Absolutely terrified about potential cancer

Hi, I'm 29 mother of 2. I already have type 1 diabetes and Addison's disease. 
 

I've had an achy left breast for a while, on and off not all the time. Would stop for ages and then return. I've been on the mini pill so I don't have periods that I can related the pain too.  I wasn't too worried but it started being more frequent so I got checked. I was examined they told me breasts felt normal and not to worry at all but she'd refer me to the breast clinic as it's protocol?

I then over the weekend found a very small oval smooth lump very close to my nipple. I do have very lumpy bumpy boobs but this is definitely new and I haven felt it before. 
I think I can feel a more Suspciciois type lump but I don't know if I've just been poking and prodding so much that I'm feeling things that aren't there. 
 

my anxiety is horrific. I have two small children and last year my 34 year old friend died 7 months after being diagnosed with BC.

I have an appointment a week today but I don't know how to cope. Everywhere I look I'm seeing breast cancer stories in young women I can't escape it. Is it a sign? Is it normal for your imagination to run away like this? 

Ieveryone is telling me not to worry, but I'm not coping at all, I can't eat I can't sleep. Im barely managing looking after the children. Im so petrified I can't see a positive outcome to this. Any advice or reassurance or words of comfort appreciate. I'm making myself unwell with worry dr Google hasn't helped and got me convinced I've got metastatic BC. A week ago I wasn't even worried about the breast pain. 

  • Google will convince you that you have BC because you're seeking it out.

    The boring part, but an important part, keep off google. Google is not a diagnostic tool in the slightest. More so for people who don't know what they are dealing with. Google can not and will not tell you what you may or may not have. Only your appointment next week will eventually lead to some sort of answer. Google will tell you have BC because, yeah, you're seeking those stories out. Google will make you ill in other ways as you are now finding out.

    So you're not gonna read much that contradicts those cancer stories.

    The reality, BC is rare in younger people such as yourself. Not unheard of, but also more likely to be something benign. Only one out of 8 lumps turn out to be BC (probably less in your age group), and maybe what you are feeling isn't even a lump, but a structure, a cyst or a fibroadenoma . I know you said you think it's new, but remember, you're currently hypersensitive to anything you may find in that area until you have your appointment. Something you may have simply went "meh" at this time a year ago is suddenly an "omg situation". Your mind is in overdrive as is your anxiety, so that will be playing a part.

    There is no magic bullet to calm you down during this period, as the not knowing is one of the worst parts mentally. It's awful. But keeping busy is really the only thing that begins to help.