I have swelling under my left breast, i had sharp pains off and on for 15 hours before going 2 the ER . Was not sick at the ER . All blood test came back good, had ex rays of my chest everything look good. They sent me home. The next morning I started getting really sick and can t keep anything on my stomach , the sharp pain is gone, but still swollen and very sick and swore to touch. The Dr. At the ER said he didn t have any ideal what it was and said 2 come back if I didn t get any better that was three days ago. I m not better , my Dr. Is out of town until next week. If he doesn t have ant ideal what it is why would I go back. How long before I should worry?