Could celery juice trigger gastritis

Always had a weird feeling in my stomach after drinking it, even before it started. Also had diarrhea when I started but people said that's normal. The thing is, my gastritis burn and pain is in the exact same area that I felt when drinking celery juice.

I don't mean to hate. I just need some clarity.

I tried mono eating potatoes for a day and got cramps from them. Tried looking for aloe vera for the shock therapy but we don't have that in the area. Only ones for cosmetic use. Don't have a juicer for the shots because I can't afford one for now. Do you think it'd be possibly to blend them and strain them through nut bag? I have a very good blender.