Is it angina

1 .. Some times I feel a pain while sitting or just getting up from sitting position or mild walking. Question is "is it angina".
a)It doesn't have the same characteristics of previous angina.
b) no radiation.
c) on prolonged walking no pain.
d) always pain decreases on rubbing the chest wall.
e) on climbing 5th floor, 6th floor I donot have pain, or slight pain at lower part of chest which occurs more while taking rest than actual walking. But pain never ever occurs in upper left parasternal area.
f) my lipid profile is awesome.
g) my body wt is touching all time low. (65kg)
Today I climbed 6th floor thrice in quick succession, I had a mild pain  at lower part of ches at the end of 2nd round.