Hello! Thanks for putting your query in HCM. I am a Gastroenterologist (DM).
Passing of only gas and yellowish mucus and no stool means constipation
only, and you rightly said it is the side effect of Lortab
only. So if feasible take an alternative analgesic
like combination of tramadol
and acetoaminophen or take some laxative (Like picosulphate) along with lortab. Sometimes only fibres don't help.
I hope I have answered your query and this will help you. Remain in touch and get-well soon.