I had tendonitis in my lower leg caused, I assumed, by having just completed a very long mountain walk in Wales. I assumed that the insect bite in the affected area was coincidental. However, the Physio, also a runner, had suffered an inflamed Achilles caused by an insect bite. My tendonitis has now cleared up, after 6 weeks, but th3 nite is still visible. Could there be a link - and what sort of insect could cause it?