Inflammatory breast cancer or breast cancer?

Hi everyone,

 

I am 23 years old. I thought I had lymphoma but now I'm terrified it could be inflammatory breast cancer. My armpits have been itchy for about 8 months now I'd say, I didn't think anything of it until I started getting little red spots all over my arms and chest. That's when the lymphoma worries crept in. Well after googling I'm now petrified it's not that, and it's actually inflammatory breast cancer!
 

Both my breasts have a pitted appearance at the bottom, no redness, lumps or swelling that I can see and my nipples look okay. In the crease under my right breast there's a red patch that I thought was a sweat/yeast rash as it comes and goes and I have quite large breasts but now I'm not sure. I'm usually good at checking them for lumps and I haven't found any that I can feel. Occasionally my nipple/breast will itch a little but not really.

 

I have a telephone appointment with GP tomorrow about the lymphoma symptoms so I'm going to mention it then and hopefully get in for an examination but just wondering if anyone has had inflammatory breast cancer?

 

thanks x