As you mention if your investigation shows arterial athero emboli then most probably the pain is due to the athero emboli. As you said, you feel pain during walking, this shows there is only a partial obstruction of the artery
is not an option here. You will benefit from bypass surgery
or stent. This should be done as soon as possible as there is a chance of complete blockage which could lead to acute limb ischemia
and amputation as a result. Operated in time, there all chances for complete recovery.
Wish you good health