Open Cholecystectomy. Is these normal?

I had my open Gallbladder surgery on 14th January this year. I had stone also in my CBD, so doctor performed an ERCP and placed a stent before surgery. I was good after the main surgery (14.01.22). But then when I removed my stent on 27.02.22, after 2-3 days pain started like before. I admitted in hospital again and my both bilirubin level was above 4-5. Doctor said I have Jaundice, but after that in last 25-30 days I haven't feel any pain. Now my question is- 1) How i got Jaundice after 1 month of Open Cholecystectomy? That was obstructive jaundice. 2) I did MRCP and it showed mildly narrowed biliary ends, is that for stent removal? Or is it some serious biliary stricture? 3) Even after 3 month (almost) of my Cholecystectomy, still I haven't get my strength and energy back. Even I l'm at home 24x7. I feel very weak, weight isn't increasing. Feel low on energy and fatigue like. Is these normal?