Feeling ill with aging tirz from SlimDownRX

Last year I hoarded some tirz from both SlimDownRX and Emerge. My now aged SlimDownRX tirz is bringing on nausea, something I never encountered before.

Thinking next week I will move to an Emerge vial and see if that makes a difference. Product from both sources are still well within the “use by” dates, and have been well stored.

Has anyone else noticed a change in side effects and/or efficacy as their stockpile has aged?

Thanks.