Hi I found a breast lump last week I went to my doctor today who gave me antibiotics as I have a temperature. Is it possible it is just an infection. The doctor looked concered when I mentioned being unable to sleep due to back and rib pain. But just gave antibiotics and said to come back if there is no change. Is this normal or is it just because i'm only 22 they want to rule out other possabilities before sending me for tests?