File early. The window is shorter than people think and it starts at the transaction.

It gets smaller. Not easy, smaller. That distinction kept me going.

Is a baseline blood test really necessary before starting something like this?

An inconclusive account is useful if it stops the next person mistaking a story for a controlled comparison.

You are not imagining it and you are not being difficult. Document it and take the document in.

Same here. Not on tolerance but the pattern is familiar.

Bring a list. Embarrassment makes everyone forget things, including you.