Unfortunately there can still be emissions:

https://www.nature.com/articles/s41586-019-1193-4

From abstract:

A recently reported slowdown in the decline of the atmospheric concentration of CFC-11 after 2012, however, suggests that global emissions have increased3,4. A concurrent increase in CFC-11 emissions from eastern Asia contributes to the global emission increase, but the location and magnitude of this regional source are unknown3. Here, using high-frequency atmospheric observations from Gosan, South Korea, and Hateruma, Japan, together with global monitoring data and atmospheric chemical transport model simulations, we investigate regional CFC-11 emissions from eastern Asia. We show that emissions from eastern mainland China are 7.0 ± 3.0 (±1 standard deviation) gigagrams per year higher in 2014–2017 than in 2008–2012, and that the increase in emissions arises primarily around the northeastern provinces of Shandong and Hebei.

That’s how idioms ofter are: there’s nothing to get, only to know.

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I’d add the calcium from the water as a factors

Brain can put its spin on perception, especially when tired or agitated, like, when anticipating something out of worry/fear (which can be somewhat subconscious).

But yeah having talk with a doctor is not a bad idea.