Hello and welcome to HCM,
You have mentioned that you have had a tummy tuck surgery or a liposuction
Liposuction is known to cause fat embolism
In fat embolism, fat droplets form emboli and travel along the blood vessels.
Fat emboli can form anywhere in the vasculature.
Calf pain is more suggetive of deep vein thrombosis
which is more often seen in patients who are bed ridden for long periods, females taking OCPs, people with diseases of coagulation system.
A history of shortness of breathe, lightheadness and dizziness
point towards lung problem may be pulmonary fat embolism in face of such a history.
Consult your treating doctor as soon as possible.
The problem may not be detectable on X-ray chest.
Further investigations like pulmonary angiogram may be required.
I hope my answer is of help to you.
Thanks and take care.
Dr Shailja P Wahal