Evening all, apologies for resurrecting an already done to death topic but I'm not sure what to do. I've got my first TSC weekend in a fortnight and what has been a long running issue has suddenly got much worse. When I'm running I'm fine for the first 1-2 miles and then all of a sudden I start to get what feels like toothache in my shins and up the sides of my lower legs. It gets worse and worse until I stop to stretch off and then the pain subsides only to come back after another few hundred metres of running. Obviously I'm used to aches and pains and I'm not exactly unfit, I can do a 1.5 miler in under 9 mins and 4 miles in 30. I'm not overweight either. I've had this sort of pain in my shins for around a year now but before it was so minor I just put it down to cramps and made sure I did stretches afterwards but it has got much worse quite quickly. Not sure what to do and I don't want to make it any worse. Thanks.