HI, thanks for using healthcare magic
The symptoms of
indigestion and burping would be related to the gastrointestsinal tract and would not be related to any condition of the urinary tract such as infection.
Though pain in the lower abdomen can be related to the bladder, the crampy nature along with the
radiation to the back makes it less likely to be the bladder or urinary tract.
Leucocytes can occur in other situations other than
urinary tract infection unless they are present in very high quantities.
It is possible that your symptoms are more related to the gastrointestinal tract (Stomach and intestines) than the urinary tract.
You may want to consider the use of
reflux medication even if you do not have the other typical symptoms. These medications sometimes help with indigestion and excess air.
Eg pepcid, zantac, nexium , prilosec, prevacid
You can choose one of these, should be over the counter.
I hope this helps