Define back issues as well. Lower back? Rhomboids?? I’ve had em all for 25 years on and off so may be able to give some tips
My back keeps getting thrown out where I'm basically paralyzed for a few days, seems like lower back/hams/,glutes problem
Low squat and hold for a minute. Feet a little open. That should remove the tension a bit. Look up stretching excercises for soas muscles. When it feels hams up to back, it’s commonly soas needs stretching. A good physio or osteopath (if not in North America as they don’t have them there) can help with a good stretch. It’s extremely overlooked muscle. Definitely high chance if you sit at computer a lot
I T band rubbed out with a rolling pin is good for knees, hams, soas.