Post covid pain. Any matter of concern?

My mother was covid positive on 21 April (Mild to moderate infection was there 99-100.5 temp, cough, crp was reached to 45,Spo2 lowest level was 90 then recovered now 98-99  , loss of test smell) Current medicines Nurokind LC Novastat 10( high cholesterol) Redrim+ ( due to low hB) Rivaroxaban 10 Prolomet AM 50 regular medicine( for BP) Last crp cbc done on 19 may Crp was 5 From day before yesterday she is having pain at upper abdomen just starting of limbs bones And same at back centre where limbs bone starts (A pic i m attaching to show exct positions..orange circles) If she rest it with hot water bag she gets little relief otherwise it is paining . What, can be the reason ? Any matter of concern??