I have lots of breast pain, and sometimes lumps. I make sure to get yearly mammograms. So far, they are just fibroids--Nature's silicone, I call it. Anything to make them bigger. They can hurt.
I also get pain from swollen lymph nodes in and around the breasts. The pain radiates so you really need to feel around and make sure you locate the spot and check for lumps.
I also have sometimes severe pain in the fatty tissue under my armpits. I use a gel deodorant so that it can't clog my sweat glands but the problem is not only in the skin, which hurts like its septic but has no redness or oozing, but also hurts on the actual ribs. I've been told this is part of autoimmune disease, possibly arthritis. I think it has something to do with my liver and other organs constantly pushing out on them. I had pain like that when my liver was really really bad.
But I would go to the gyn and have that checked out and definitely find the spot. Mine are just so lumpy from fibriods that it's hard to discern things.
Oh, and I also had breast pain when I had galactorhea (I was actually lactating for no reason) and no one ever did figure out why but it went away. I had some hardness then too and definite pain.
I need to find a good ob/gyn too. My doc won't do a breast exam for me and I can't reach it all and I'm not very good and I can't discern what is normal from what is not.
Both my sister and my mom were very well served by docs doing breast exams. I get the mammograms, which only mentioned the fibroids once and now just only ever say normal. No doctor has ever even brought up the issue of the fibroids with me. I don't know what the risks are with them. I know my mom has a bunch and she told me they are just benign and not a problem.
Take care and sorry I couldn't help more. Also, pain in the shoulder and breast might be something deeper like an organ or something, I don't know. Right shoulder is liver. I got really bad tendonitis inmy left shoulder and learned I cann'ot carry anything over my shoulder anymore because there is no bone to bone support, only tendons and ligaments and as we age and don't exercise, they get weak. My shoulder pain did not affect my breast though.
--Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us. Bill Watterson (1958-) cartoonist "Calvin and Hobbes"
Ills--Sjogrens-Lupus-like AI Disease, Hashis, Vitiligo, spinal stenosis/fusion with plate, salivary/lymphectomies, Diabetes, NAFLD, COPD, RLS, neuropathy, trigonitis, hystero, diffuse brain atrophy, GI nightmare
Meds--Plaquenil, Evoxac, Metformin, Synthroid, HCTZ, Estradiol patch, Prosed, Detrol, Klonopin, Ultram, Vicodin, Restasis, Albuterol, steroid injections and pred prn