ANXIETY IS NOT MY FRIEND...I am my own worst enemy

Well I went to see my doctor about the weird left breast pressure sensation.  She did a full breast exam and didn't feel anything but she did remark that my right nipple was "clustery" which kind of freaked me out.  Because now that I look at it, it is kind of bumpy which freaks me out even further because I accidentally learned about Inflamatory breast cancer when I was looking something else up.  One of the symptoms is a weird rash, but it is only one such symptom the others are feeling of warmth, red bumps, one breast swollen.  Now I am kind of freaked out because I couldn't remember if my right breast had been that way for awhile or if it was a recent change.  And I know that it is a very rare cancer 1% of woman get it but I can't help thinking I could be that one %, which is an awful way to feel. 
 
My Doctor decided to have an ultrasound done on my breasts just to make sure, because of my family history.  Which is great but it does freak me out that they could find something.  Both of my breasts have been tender but I think it is because it is that time of the month and I have done a lot of self exams on them.  I even mentioned kind of off handedly about IBC to the doctor but she said you look on the internet and you will find something to freak you out.  Which lets face it is very true! 
 
My appointment is for tomorrow afternoon, I hoping for the best but I am really getting anxious about it.  I am afraid that they will find something but I am hoping to get the all clear but with the way my mind works I will probably will not trust it.  Also I now know that the only way to truly know if it is IBC is a biopsy.  I know more then likely I don't have it but I can't stop thinking that I might so I vacilate between calmly and rationally thinking that I don't have it to anxiously thinking I could have it and they won't catch it until it is to late.  I HATE ANXIETY!!!!!!!!!!!!!!!!!!!