For The Past 5 Months Or So, I've Been Experiencing

For the past 5 months or so, I've been experiencing a strange burning type pain in my right leg. it's on the left side of my calf and seems to be a little below the surface and is localized to one small spot with very little spreading, if any. It's a short burst of pain only when doing certain activities and can't always be replicated. The burst is about 1-2 seconds long and usually happens maybe three times a day; there's no real pattern to it that I can see. I'm a computer programmer so I sit for many hours daily but I'm generally healthy (except for acid reflux, severe anxiety, and a few odd health issues like recurring bronchitis), but I've been checked out many times for my heart and never had any heart or blood related problems. I have no redness, heat, or tenderness anywhere around that area either. I'm 19, 5 foot 11, and 160 pounds so I'm about normal as far as size goes. Is it just my health anxiety or something else to be worried about?