<s>[INST] I have a strange vibration sensation in my leg just above my knee. I am 41 and healthy. just had a physical and blood pressure is good as well as cholesterol. I have had more sugar than usual this past week and have been smoking again. I am under the normal amount of stress. This sensation doesn t hurt but it is distracting and annoying. What is going on? [/INST] Hello, The present vibrating sensation just about your knee can be due to either stress or due to recent high blood sugar level.  I will advise you to do regular exercise is at morning and avoid high sugar foods. If this level of high sugar continue to be there after 10 or 15 days then I will advise you to consult your doctor and get yourself completely evaluated. Hope I have answered your query. Let me know if I can assist you further. Take care  </s>