Hi i am 40 yrs mail

i am having pain my right lower abdominal, it has been there last couple years., sometime it bubble and fell something inside catch my abdominal and i can see me stomach is shaking and pain and i push that part and go away but that during time i suffer pain. I went to check up and they told me it may be cause of constipation, it give more problem while constipation but i am so mentally disturbed, stress can't even share anyone my issue, even when i snitch fell my something moving up and fell so discomfort and pain , i am in so much pain and disturbed please anyone know help me, what should i to, we dr city scan they just give suggestion have some more fiber 

but i am in pain while its bubble fell something want to come out 

please advise me