Ah, good to see a pro and get the guidance. I think many problems, all the way up to the neck, can be caused by issues with our feet.
I think the easiest thing is to link images for exercises. So, I was told by a sports physio that my right glute wasn't activating and stabilising properly when I ran, which was news to me since that's my stronger leg. It was the leg I had the calf problem on though, and I've previously torn that thigh muscle. But having played a lot of football, I suppose my left leg often plays that supporting role rather than the right. He said this was placing stress on the calf. I have been using this stretch, making sure to keep my hips level and not *cheat* the stretch by arching my back or similar.
http://womenfitness.net/wfimgank8/bum_exercise2.jpg A useful variation is to put the foot of the stretched leg on a surface, a bed, etc, when it is up, and then use the hips to stretch the thigh out.
For the calf itself, I have been using a stretch as follows, I stand one-legged on a stair, on the ball of my foot, balancing, and allow the heel to fall below the height of the step, and feel that stretch right through the calf for thirty seconds. I do this on both calves, for balance, and repeat it as many times as I feel like. It's a really good deep stretch I can feel all through the calf. It's like this, except I take my weight on one foot at a time, and yes, I just hold the position until I feel the stretch.
http://www.docpods.com/images/FootPain/calf-stretch-lower-double.gif
For the glute, I use an exercise where I like on a bed or flat surface on my back, with my knees bent, feet flat on the floor and butt held in the air, then the hands are on the glutes and the hips are rotated forward so the pelvis comes up and you feel the contraction of the muscles, then release, still with the butt in the air, and just repeat that many times, which is working to strengthen my glutes. I feel that's working quite well. It looks a little like this
http://drstevenwyllie.ca/wp-content/uploads/2012/11/glute-bridge-exercise.jpg
I also try to do yoga when I can. Bryan Kest's Power Yoga series, which may have been recommended on this forum years ago, has some really good stretches which have helped with my achilles tendons. I use a pair of moulded Footbalance insoles in all my shoes, these take an impression of the highest position your arch can be in, and support softly, so for someone like me with arches, but arches that fall with impact, they work very well too.