Is it normal to have gas trouble and tiredness after laparoscopic cholecystectomy ? surgery was 4 days back.

Some times: Most of the time, recovery is quicker with laparoscopic surgery ( any procedure ) , less pain, and heall quicker, you will be fine in a day or so , see your surgeon for post op visit.

Yes. : It may take weeks for your digestive system to adjust to "losing" your gallbladder; your gas trouble is likely a manifestation of this adjustment. As far as the lethargy...You just had general anesthesia, which takes days to get out of your system. Lethargy is normal and expected, as well as afternoon naps. Be sure and follow-up with your surgeon, as recommended.