Walking + Pranayam. Are blood sugar.

Sir,Good Evening. I am Pradeep Bharadwaj.My Age 68 + Height 5' 4" Weight 68 kg . PGTCA was  done in 2009. Ecosprine Av75, Metolar xr25, Zolfresh 10mg are continuing. Fasting 80 mg/l & After Meal 85 mg/l.  are Blood Sugar . I walk 3 k.m in 0.30 Hrs six days in a week & do Pranayam 1.30 Hrs. daily Bhastrika,Kapalbhati,Anulom Vilom,Bhramai and Udgeet each of 5 minutes of 3 round each. In addition Exercise Of 0.30 Hrs. Kindly let me know that after 2 nd dose of Covid 19 in May 21 Since last one month I am feeling some muscular and in neck pain. However,I am doing my routine work regularly. Blood Pressure always remain normal. What type of activity your good self will sujjest to reduce so that I can remove my muscular pain.