Doctor told me not to worry but worrying is what I do best

Hello All,

To start, I am a 30 year old, active woman, run almost daily, never smoked, drink socially, and have no history of breast cancer in my family. I also switched from a combo pill to a hormone IUD last fall. I've also recently lost 15 pounds intentionally through diet and exercise (after slowly putting it on over the last three years). They always said that you get comfortable in healthy relationships; I guess it's true. My breast are always the first thing to change size when I gain or lose weight though.

I have always had uneven breasts. My right breast has always been noticeably larger than my right, probably between a half and one cup size larger. I've always also had lumpy or fibrous breasts. A few weeks ago however, I noticed a good sized area in my left breast where the tissue felt a little harder than anywhere else. I brushed it off as I've always had fibrous breasts, and it seemed normal that the tissue would be more pronounced in my smaller breast. I thought I just noticed it because I lost some weight and my breasts got smaller.

Fast forward to last week, and that same breast also became a little tender and slightly painful. While I cant remember exactly if the pain started around the area of thickened tissue, that is now the tender area. I immediately freaked out and called my primary care physician. She got me in and did an exam. She considered it a 'normal exam' but also noticed the area of thickened tissue in my lower left breast. She said she felt similar tissue in my other breast but said it was less pronounced. She thought that it was probably because this breast was a little larger and had more tissue. She assured me not to worry and thought it was most likely fibrocystic changes due to weight loss and my IUD. However, she told me she ordered an ultrasound for 'peace of mind'. I try to repeat my doctor's words to myself, but Dr. Google has me convinced I have stage 4 cancer. She also thought I made the tenderness worse by obsessively checking the area. I've tried to stop, and while it seems better some days, I still notice a lot of tenderness around the area and a tiny bit of pain sometimes, especially after a run. I've never experienced any thing like this, so I'm very freaked out.

As far as I know, my doctor didn't rush an ultrasound because she wasn't worried, but I'm still waiting for my ultrasound to be scheduled. My appointment was only a few days ago and somewhat close to the weekend, so I'm sure that too is why I haven't heard from breast imaging. However, she never mentioned the word 'lump' during my appointment, but I read her notes in the after visit summary that got emailed to me, and she said, “healthy appearance but diffuse fibrocystic changes with cystic lump a 4'o clock'. I also told a friend, who is by no means a medical professional, who told me I should be very worried if I am having one-sided breast pain. That sent me in to a tail spin.

I'm just curious if anyone has experienced something similar. I'm trying to remind myself that the doctor told me not to worry, thought it was just fibrocystic changes, and understand that worrying does no good. Worrying is what I do best though unfortunately, and I've never experienced anything like this before