Intermittent vomiting and diarrhea, thickened muscularis layer of stomach

7 year old FS French Bulldog with 4 week hx of intermittent vomiting and diarrhea + weight loss and decreased appetite.  I was not given blood work, but was told there was a decrease in serum protein that improved on recheck (assuming albumin, but unsure).  She does have some mild muscularis thickening in a couple of small bowel loops, so I know ultimately biopsy is indicated. 

She was also diagnosed with a UTI and then only put on 5 days of antibiotics.  We are rechecking a UA as the sample looked quite suspicious for residual infection from gross appearance. 

I am concerned about the stomach wall appearance and would love some feedback.  My understanding is that the muscularis layer in the antrum can appear a bit thicker, but this looked more widespread, although no masses, wall layers were still distinct and overall thickness was still WNL.  (Please let me know if I am incorrect in accepting some thickening of this layer in the antrum for future reference)