Usually my legs ache after doing household chores which involves standing for longer time.this has worsened after I started with some crunches exercise for abs.due to this feeling drained out,sleepy,,low energy level.otherwise also get leg pain with little physical activity.can you pls suggest some tonic , calcium tablet n otc for pain relief for leg n backache..my weight is also less .it is 46kg n I am 36 yr.i have checked vitb12, anaemia,n thyroid.. they're normal.