Your symptoms are suggestive of aortic disease - mostly of atherosclerotic origin.
As pain is getting worse in leg; look for discoloration,severe pain
on movement. If it occurs, consult physician immediately.
Even-though you are not overweight; consult doctor
and rule out heart disease
Also it can be disc problem but pain will be radiating from lower back. Palpitations , dizziness
will be absent.