Started running in July so I could do Triathlons. It was hell a first, I could only do 100 yds. But now I can do 7 mi at a 10:30 pace. Not great, but constant. Problem is sometimes I develop a sharp pain in my right calf. It seems to start about 1/2 way up the calf muscle and ends in the meat of the calf. I can still run, but it gets a bit worse after and last for a day or so.
Any ideas what it is, and how to treat and/or prevent it?