This is the correct amount of effort for a thread like this.

Read the methods section. It is the only part that says whether the conclusion is allowed to exist.

Take one to a pharmacist. Free, two minutes, correct. Everything else here is a hypothesis. How long have you been on a changed taste or smell?

The last ten percent of a taper takes as long as the first ninety. Nobody says so until you are in it.

How do you tell the difference between the drug working and just a good week?

Read the methods section. It is the only part that says whether the conclusion is allowed to exist.

Three questions kill most of the confidence in a thread like this: sample size, blinding, who paid.

Sleep first. Bad night, bad day, more symptoms. Fix that before changing anything else.

Read the methods section. It is the only part that says whether the conclusion is allowed to exist.

Same shape here, different drug. The thing that helped was documenting the refusal rather than re-arguing it. They refer rather than write.

Filing early beats arguing later. And ask for the reference number, always.