Is Mondor's Cord Always Visible? I Have No Bruising, Swelling, Redness.

I had brest implants removed. 1wk after surgery started to get discomfort/irritation in area below my left breast fold incision. it radiates about 3inches down toward my stomach. wastold this is mondor's chord. but i dont see or feel any chord as i've seen pics online. even when i lift my arm/strech no chord is visible. i have 60 lbs of extra weight currently. is extra fatty tissue possibly preventing mefrom seeing the chord. are chords just sumtimes not visible. or is this sumthing else