I suffer from sciatic pain in my lower back and in my right leg. My doctor sent me to physical therapy for this, but afterwards it came back. Instead of going back to PT, I do the exercises at home. I am now seeing a chiropractor to try and correct the problem. So until you can get back to your doctor, I would suggest trying the exercises you did in PT.
Never undermine your worth, by comparing yourself to others. ~Tonya J.
Confidence comes not from always being right, but from not fearing being wrong. ~Peter T. Mcintyre
If things go wrong, don't go with them.