Smell fart & poop. In january only.

Doctor, hope all is with you all. I'm 24 year old student. I've been facing this issue from January'21 I experience smelly fart and poop which smells like bad garlic or rotten eggs. My stools are also not firm either like before its more like undigested food and half half stools not like before, at times i need to go twice to washroom. I have  no stomach pain or anything of that sort but its just the smell and improper stool texture. I doubt these foods/medicines : I used to have raw garlic everyday in January (those days) along with Paya soup (everyday for one week), probiotics like yakult or cherri syrup for B12 & iron Or probably due to masturbation ; because the smell increases by doing it. Medicines given for my post corona (corona happened in aug'20) Anxiety by my Physician was in January'21 :- TAB NEXITO TAB ETOSHINE MR TAB ARCALION Prescription has been attached below. Currently I'm taking No Medicines everything that is mentioned was taken in January only.