Test one thing at a time. It feels slower and it is the only way to learn anything.

File early. Tolerance was my main issue with distance sale in the EU too.

Personal experience, labelled as such, is exactly right here. Nobody is prescribing. How long have you been on the distance-selling list?

Narrow conclusion. Tolerance was my main issue with alpha-GPC too.

Do you contact the customs office or the carrier first?

Worth repeating that this is not medical advice and the answer often depends on who you are.

Worth repeating that this is not medical advice and the answer often depends on who you are.

Interdose restlessness is distinct from the original symptom and worth naming separately.

Read methods.

Personal experience, labelled as such, is exactly right here. Nobody is prescribing.

Careful with attribution. You changed the timing, the dose and the season. That is three variables.

You have two changes at once here. You cannot attribute anything until one of them moves.