Conversation: The conversation between human and AI assistant.
[|Human|] I am 21 year old female, 5 10, maybe 155lbs. I have noticed slight numbness in hands and feet that comes and goes, and just noticed swelling behind my knees it is not painful. In addition my arms and feet have become more prone to totally falling asleep. Medical history includes heart problems- I also just moved to china where it is difficult to eat well.
[|AI|]  Hi, I think you should get your spo2 checked in both upper and lower limb very week. If it is below 90% you should consult vascular surgeon. Because if there is decrease in blood flow it may cause numbness in hand and feet. You have not mentioned parasthesia and pain. If you have that than should met MRI spine and vitamin B12 level check. Hope I have answered your question. Let me know if I can assist you further.