Brief Answer:
IBS resolve after Stopping medicine, seek GI

Detailed Answer:
Thank you for asking!
These sedative hypnotics are truly the cause for these stomach upsets and and these adverse effects can only be tackled by stopping the drug or switching it over with some other anxiety medicine. Get to a psychiatrist and let them switch the drugs or lower the doses.benzodiazepines does that usually quite often.
Now if you want to stop the medicine it should be slow and tapering of dose. No way sudden abruption of the medicine. Lowering the dose of time span of weeks with lowering the dose to half in first week then using on alternate days for a few and then twice a week and then finally once and then stop. Otherwise it will lead to withdrawal and those are very harsh 10 days of Benzodiazepines withdrawal and addiction medicine specialist needs to be consulted for some help.
Now the IBs i am sure they will resolve , but you should know functional bowel might be present there for before and might be just exacerbated with your recent encounter of sedative hypnotics use resulting in their worsening.
If the issues of functional bowel still persist despite the stopping of the medicines 10 days after wards of it minimum, then i would like you to seek a gastroenterologist for further work up as there are thousands of etiologies possible for it. washout techniques, radiography and breath tests., CT volumetry and some other GI functional assessment would make things clear for the etiology.
. Intolerance to lactose, fructose and sorbitol are relatively common and thus lipids intake should be minimized to the minimum to avoid such bloating. Bifidobacteria and associated probiotics have proved useful and helpful in the bloating issues.
Another rare cause of bloating is abdominal anterior wall tone dysfunctions resulting in bloating.
Also prokinesis and peristalsis of Gu tract once impaired may also cause the bloating.
Postprandial bloating is a hallmark of an inflammatory bowel disease and it needs to be assessed by a gastroenterologist and treated accordingly to permanently have a solution for it.
In nut shell, DIet and lifestyle modifications for the functional Gi troubles, More fibres, less fats and carbohydrates, small meals of frequent durations that few larger ones, use of healthy lifestyle and exercise, losing weight if an issue, controlling lipid profile in a limit and compliantly using hypertensive medicines and staying in touch with your doctor is advised.
Meanwhile some prokinetics like metoclopramide and domperidone and erythromycins would keep the propelling work and make the bloating less but it needs a work up as i mentioned to sort out the most likely functional cause as IBS etc.
Seek a gastroenterologist for further management.
Take care and dont forget to close the discussion please.
May the odds be ever in your favour.
Regards
Dr S Khan

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