hello Piyush, welcome to HCM..
is very common at this age..this constipation
add to ur back pain..
for ur constipation do some modification in diet.add fibre food and hv plenty of water...
u need ergonomically changes at your work station. if u inform me abt ur work nature then i can help u in that..
for ur back pain treatment u consult a good physiotherapist who can tc of ur pain.
u need regular exercises to get of those pain..