Conversation: The conversation between human and AI assistant.
[|Human|] I feel as though there is a liquid near the surface of my upper left chest muscle near the arm pit that burns when I lean foreword in a standing position. The burn is very intense like a white hot iron is slouching in that area. just started 4 hours ago and is increasing in area. feels liquid in nature, but i feel no bump and it may be inside rib at that location? do not feel it by putting finger pressure in general area.
[|AI|]  Thanks for your question on Chat Doctor. I can understand your situation and problem. In my opinion you should first get done 1. Chest x-ray 2.  Ultrasound examination of local part. Lung infection or skin infection (left upper chest area) can cause symptoms of burning and fluid sensation. If both these are normal then no need to worry about major diseases. Also get done vitamin B 12 level, hemoglobin estimation as b 12 deficiency and anemia can give rise to similar sensation. If any of these are deficient then you need supplements. Don't worry, you will be alright.