Psoas muscle problems...Need advice

I've never had a soar psoas but thought it was a cause to my low back pain. Turns out it was the piriformis. Sounds like it may be tightening by being still.

When I had my back pain, the best thing for me was to keep moving and don't "let it heal" by laying around. I don't think ice helps because it restricts blood movement to the area.

I noticed that more often than not, it's not the muscle that hurts that is the cause of the pain. You might have a muscle imbalance and the psoas is overcompensating. It won't hurt anything but get a lacrosse ball and use it on your piriformis and glutes. When I was hurt in my lower back, I stretched my lower back for the longest time and it either hurt worse or didn't do anything to help. Also, if you have tight hamstrings, check to see if you have a pelvic tilt. I've tried for years and years to stretch my hamstrings and what I found out was that my hamstrings aren't actually tight. I have a pelvic tilt and it was stretching my hamstrings and when I went to stretch them myself, they were already stretched and I thought I just had terrible range of motion.

Another example is that my boss had a front shoulder, bicep and neck pain. I told him it's one of his rotator cuff muscles that is acting up and it is a referred pain. I told him to take a lacrosse ball to his infraspinatus and supraspinatus muscles and see how that worked and it was like magic to him. Now he does it almost everyday.