Hi lilacben, What a coincidence I was going to post the same thing, I was in the garden last Saturday, cutting the lawn and trimming the hedge, yesturday I started scratching my left ankle and realised that I must have been bitten in the garden by "something " unlike your self I didn't see what had done it. Well today my ankle and foot has swollen up considerably to the extent that its very painful to walk on it, so it looks like I need a visit to the docters tomorrow.
My ankle had a red ring too where I was bitten, but now its the size of a pea. X X X :-(