Just to sympathise, and empathise. I once put out my arm in a supermarket to take a small tin off a shelf and I felt 'something' in my back 'move'. Within half an hour I was in complete agony.
It was a Saturday and by the time Monday arrived I could not walk, stand, sit, go upstairs. I could not drive , lift anything at all- even a cup- get dressed or undressed, bend or straighten, turn over if I was lying down, or get up. I was crying out in pain and racked with awful muscle spasms. It was across my lower back.
The GP came out and did nothing except provide painkillers and valium. Would not send me for x--ray or scan because he said it was 'soft tissue damage'. He said if it had not improved in 4 weeks he would consider sending me for an x-ray. In the meantime, take the painkillers and valium and lie flat on the floor.
I lay on the hard floor for a month all day and night. It was the only place my back was manageable and even then it was agony. DH left me on the floor in the mornings in my nightie, with a light blanket over me - I couldn't stand the weight of anything else on my legs- cartons of yoghurt, a banana, water and painkillers. If I needed to go to the loo, it took about 45 minutes to get off the floor. I would sob. Using the loo was agony as my back spasmed sitting. I could not use the upstairs loo. I could not go upstairs for a month. I could not lift my legs to climb the stairs even once I could crawl. I was sure I had done something terrible to myself somehow or had an awful disease.
One night the pain and spasms were so terrible DH called an ambulance and they gave me some kind of gas mask and took me to A and E who sent me home the next morning with morphine and the same message as my GP.
It took 2 months to be anywhere near recovered and my hip was knocked out of balance and my spine misaligned. I needed physio for several months. I felt old and frail (was only 30) . However, I lost over 2 stone existing on yoghurts and bananas. It took 6 weeks for me to be able to dress myself - putting pants and tights on was impossible.
Afterwards I had sciatica a couple of months later which was very painful in my bum, leg, knee and calf, a burning pain. Lasted about 3 weeks.
I did make a full recovery from it all and they were right, it was soft tissue damage and it was better after 4 weeks and much better after 8 but took about 4 months to fully get better. But it was incredibly painful and it felt like no one cared medically.
It will improve, I am sure it will. In the meantime try and rest. 