Abdomen problem. Is that thing serious?

I am having abdomen issues since march and firstly homoeopathy dr identified it as dyspepsia with gastritis and provided treatment which had few effect too. Then week before i went in allopathy and the dr diagnosed it as infection and provided antibiotic ornof and veloz 20 for gastritis issues. Before going to allopathic dr i am noticing some problem below the right rib near the curve of last bone ofrib and extending to some 1 or 1.5 inches downwards I feel as if there is some swelling though not really visible from outside and also when i push it inside i feel hardness but no pain. For confirmation i tried it on left side also but there is no such issues. I also told about swelling like thing to allopathic dr but i didn't got a response as if the dr thought it's normal. It's second day today after completing antibiotic treatment and he prescribed me veloz 20 for 5 more days but i feel symptoms repeating like little cramps, semi solid stool, Loud burps. Is that thing serious?no alcohol