I've grown quite fond of rowing. Recently I've gone to the gym to row 3k (11:22 is my fastest time, not impressive but good enough) and I feel so empowered afterwards! It's freaking great exercise as it, opposed to biking and to a lesser extent running, really hits your entire body and leaves you out of breath quickly if you don't strategically plan your effort. Last time I did it I had just biked 8 km home from work, went down to row 3k and then I killed myself by taking 10 minutes on an indoor bike. Great exercise.
My physician told me that I simply use way too much muscle power in everyday tasks. When just standing I tighten my buttocks and abs to hold me upright but this actually does the opposite so I'm trying to teach myself to relax a lot more. To supplement this, I'm also doing a bit more yoga which feels great. Hopefully this can alleviate some of stress in my groin area and put my pelvis back in place.