No lumps but pain in breast and underarm

Hi , I was told last week by my go I had a small breast cyst that was infected I went with a burning breast pain and what I can only explain as a cold liquid feel going down the side of my breast I was given antibiotics by the end of the antibiotics I didn’t feel any better so went to a&e as it was a Saturday evening I was then told by the first docter she could feel a cyst with fatty tissue around it they did bloods an said my infection markers came back clear so another docter examined me and said she could not feel anything the pain is still in my breast and now feels like it’s under my arm I can’t feel any lumps but am really worried and thinking the worst iv made another gp appointment for Thursday anyone else experienced anything like that cold fluid feeling in there breast I was thinking of going to get a private scan done