Conversation: The conversation between human and AI assistant.
[|Human|] Dear Doctor, I have got my one upper lip darker than the lower one, i don t smoke nor drink. I got myself checked for a heart disease as i felt pain in the left side of my chest, my heart beat is racing most of the times and i always feel my heart beating. I start shivering when i hear loud voice and also i get tired very early and get heavy breath. i wanted to know if lip darkening is also one of the symptoms of heart problems. Thank you
[|AI|]  Hello and welcome to Ask a Doctor service. I have reviewed your query and here is my advice. It's not a sign of heart of disease. Is there darkening of fingers also? This darkening may be due vitamin deficiency. Get your it B12 and hemoglobin tested. Also, the symptom which you have mentioned are mostly anxiety related and not heart disease. You can get tab collar LA prescribed from local doctor. Hope I have answered your query. Let me know if I can assist you further.