Conversation: The conversation between human and AI assistant.
[|Human|] Hi, Someone was on top of me and had all their body weight from their palm on my chest right below my left clavicle and now there is a golf ball size lump. I have super sharp pain in my back and it hurts to breathe deep and coughing is almost unbearable. Its been about a week and a half and I need to see if this is dangerous to not see a doctor. It feels like a muscle strain in my back though. even though it was caused in the front from being pressed on way to hard. Any advice?
[|AI|]  Respected user, thanks for using Chat Doctor.come have evaluated your query thoroughly.* Seems hematoma formation most likely with referred neuritic pain over back side.* Should immediately seek medical attention without delay as the symptoms' severity is much more according to the narration, take tab. Tylenol (500)mg stat dose for instant relief. Hope this clears your query. Welcome for further assistance. Regards.