Fairlife shake issues?

I know Fairlife had some production issues where there was a strong chemical/celery taste( at least the ones I was buying at Sams) has anyone had issues with burning/nausea since they have corrected the issue? They taste ok, but after skipping a day , the first one today kicked up stomach acid and my nausea is pretty bad. I am probably going back to Premier for awhile… I don’t really like them but it’s the only way I get enough protein in.