Gallstones is one of the cause of pancreatitis.
As your serum amylase is normal now and also u have recovered from covid..u can go for lap cholecystectomy whenever situation regarding covid is little better.
Weakness after covid is very common....will go with proper diet and rest. Don't worry.
Next Steps
continue good painkillers(tab chymoral plus twice a day and tab pantop D in morning empty stomach) and other drugs which u must have been prescribed for pancreatitis.
Health Tips
have good protein and fiber diet with less spices,oil and fat.