What does it mean when the report say"erythema,granularity and nodularity in the anastomosis . the duodernum .

i had test done and it was given to me on the paper with this saying.erythema,granularity and nodularity in the anastomosis compatible with gastritis.? i have been having problems with my stomach since i had the gastric byp.stomach pain and a lot of bowel movement. not really normal.