Answer:
I would need to know more about what symptoms are being described as bloating.
If it is referring to constipation or an expanding abdomen, yes - many pain
medications, especially opioids (hydrocodone, oxycodone, morphine, etc.) can cause
the bowel motility to slow and therefore lead to constipation and what some people
refer to as "bloating".
On the other hand, if the "bloating" is referring
to swelling of the extremities, then some medications, including some opioids, but
also medicines like gabapentin, some antidepressants and NSAIDS, can cause edema or
swelling.
I would recommend speaking with your primary care provider or
the prescribing provider to make them aware of these symptoms. A medication change
may be needed.