you had an abortion and since then you have burning epigastric pain
and bloated sensation..
since urine pregnancy
test is negative, need not worry about it..
the problem you have could be due to gastritis
see your physician for the confirmation and prescription of antacids and prokinetics.. overuse of antibiotics will cause antibiotics induced enteropathy
, so take probiotics for this, drink lots of water, and do regular exercise..
all the very best..