Conversation: The conversation between human and AI assistant.
[|Human|] On the last day of my vacation (in Mexico), I noticed a small bruise forming on my collar bone. Later that day, the bruise got larger, and then I noticed a jellybean size bump in the middle of this bruise. I have no recollection of injuring myself. I am 100% sure that I did NOT wake up in the middle of the night and smash into a wall. I have no idea what this bruise is from, or if it is something I should be worried about. Can someone PLEASE help ease my mind?
[|AI|]  Hello and thank you for your question. It sounds like you may have had a bite from some sort of insect. Sometimes our bodies react to insect bites (even the ones we do not feel at the time) by forming a bruise and a small cyst like lump. This should go away on its own. I would not worry about it unless you become sick in some other way. If you develop fevers, rash or pain please see a doctor. Thank you for using Chat Doctor.