Hello . i've been experiencing a warm sensation on my right leg . just on my shin . it last for a few minuets or and cones back . it's been over a we?

Does: not sound like a real medical problem. You may try some over the counter OTC medication. However, see your doc if you have additional symptoms such as fever.

Here are some ...: "It last a few minutes ..." & " Just on the shin" suggest what you've felt are non-inflammatory and most likely represent regional nerve dysfunction - "local dysautonomia" like Raynaunds phenomenon .. Its culprit is "poor" circulation-related with aging, diabetes, etc. So, try moving around, massaging, ... healthy lifestyle... Of course, keep up current professional care with due diligence.