I had the same problem after being on tons of antibiotics. It was a bit easier for me/my doctor to figure out what was causing my GI problems because my sntibiotics were prescribed for pneumonia so we knew it wasn't a lingering problem from anything else. My pain was also on the left side and had severe gas. My stools were at first green, but as I got better they turned more golden. I am not an expert so I do not know what else can cause yellow stools, but I would recommend probiotics (good bacteria available from health food shops to replace the digestive bacteria the antibiotics killed) and aloe vera juice (helps with the inflammation of gastritis). I started taking these and the pain eased immensely. All the best, Reb
First off those meds will DESTROY your stomach as well as entire GI track. It will also cause your gastritis to never clear up!!!
How do you know you have gastritis? Did your GI perform an endoscopy and did he rule out H-Pylori bacteria? Gastritis is very painful. I know because I too have it and I bet my life those meds gave it to you. 400mg....WOW. All meds are no good for the stomach. I hope you are no longer taking them EXCEPT for your gastritis? Have you had an endoscopy?
-Jennifer