Pain after RPLND

Hi all, I guess I am new here but I was just wondering if anyone had experience with pain after an RPLND. Currently our hospital system is overloaded and I have been waiting two months the results of a CT which is still not ready so the doctors booked me for an ultrasound and gave me some muscle relaxers for my pain. A brief history about me is that I have been diagnosed with stage 3b testicular cancer last year in May, I had an orchidectomy followed by 28 sessions of chemotherapy and then an RPLND in February of this year. Initially my diagnosis was a mixed germ cell tumor with 95% embryonal and 5% yok sac and choriocarcinoma however there was signs of lymphovascular invasion and scans indicated a mass in my retroperitoneal lymph nodes. Even after chemo the mass did not shrink and when they operated they removed the mass and found teratoma. Now I have had my surgery since February of this year and for the most part I thought recovery to be going well, I had alot of pain initially after the surgery but I started back exercising and building back up strength and getting back into a routine. However the last week or so I found I had pain in my side that doesn't go away, it feels heavy and sometimes sharp if I lift anything. Its not an unbearable pain but my back hurts and I don't enjoy any physical activity anymore, I have to force myself to do stuff even if its something simple like washing wares. I was wondering if anyone has had experience with this, I'd hate to think this was cancer related.