Just looking for any stories if anyone has had anything similar . I have been the GP and currently waiting to be seen in the breast clinic my appointment is another 10 days away

I have had a dull ache by my arm pit for about 3 weeks. It’s by the fold of your arm to arm pit ( hard to explain) didn’t think much too it thought maybe just strained it lifting the baby in her car seat . Have checked my boobs for lumps / any changes and nothing then last weekend I had my hand on my hip and noticed this slight swelling on the outside of my arm pit. Dr agrees can see it says it’s like a boggy “fatty” swelling but needs checking at the breast clinic. It’s a soft swelling.