Need some ideas on what might be happening with my side/back

I promise I’m gonna go to the doctor about this lol, I would just like to see what y’all think and what it could possibly be while I wait I’m a 26 year old non binary person (born female, have taken T, but not currently on it). I guess obligatory mention that I am overweight and depressed, I’m sure those will play a factor somehow in this Since last Tuesday I’ve had this weird pain around my back on the left side. At first it just felt like a regular pinched nerve sort of pain that would occur when twisting, but it’s definitely gotten worse over time. Currently it’s an ongoing pain regardless of what I do unless I’m remain perfectly still. Hard to describe what it feels like outside of soreness mixed with something else, but doesn’t exactly feel like nerve pain anymore. I haven’t been able to check for discolouration yet, but I’ve definitely noticed quite a bit of swelling in that area, as well as that area moving around/shifting more than my non hurting side when I walk I’m not really sure what could be causing it. I haven’t done anything strenuous days prior to the onset of the pain, so I’m wondering if it’s maybe my general habits. When I’m not out and about for work for hangouts, I’m always laying on my bed, on that side that hurts. Sometimes I experience soreness, but it’s never felt, or lasted as long as this current pain