Worried I have Breast cancer

Hello everyone im posting as im  literally panicking myself so much 

I've notified my breasts both look very slightly purple/pink where my bra has been mostly and never in btween I them

Is this normal ? Does this happen to ppl who have stretched skin and heavier breasts ?so do some ppl just have skin like that ? I'm very pale so maybe that's why 

can hormones effect Breast skin ?

I keep reading about ibc and it's freaking me out a lot 

Then I have a very small purple flat spot that appeared yesterday it could ge a tiny bruise but I'm terrified it's not 

any advice would be appreciate and does anyone else have slight discolouration that isn't cancer ?