Hello everyone,
I can give my own experience on groin pain: this was a few years ago when it was so painful that first thing in the morning I could barely walk although once I got going the muscles loosened up and the pain went. It turned out, once I was referred to a physio, that this is due to the weakness of my gluteal muscles (sitting in front of a computer all day long). She gave me targeted exercises to strengthen those, which I did religiously every day for about 15 minutes: it required self-discipline, but after about 3 months the pain went and since then I do pay attention to my gluteal muscles when I walk or do yoga and have not had any groin pain since. YouTube has plenty of gluteal-muscle strength so I definitely worth taking a look for them.