Bloating has many causes and generally indicates more gas. It also can be caused by slow transit time through your gut. This may be aggravated by surgery or pain relievers that are narcotic based. Generally exercise tends to improve GI motility and over the long term should decrease bloating.
Another common cause of bloating after surgery, but not necessarily related to exercise, is the change in your GI Flora (the bacteria in your gut) resulting from the antibiotics used. You may want to consider a course of probiotics from your local health food store. Generally, the formulations that contain multiple different bacteria are better than the single strains.
Swelling also has many causes, but is distinguished because it generally refers to and is related to edema (fluid) in the tissues. This can persist for several months after liposuction and can be made worse by exercise.
I would consult with your surgeon regarding limitations on exercise but wearing a spandex compression garment will help to minimize swelling.
I hope you find this helpful.

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