to be tickled pink

[AlexAD]

Hello.

The dictionary says this idiom means being very pleased or amused.
I wonder if it is because when you are tickled to pale (can I say that?)
you usually laugh and look very happy.

I would be grateful if you would correct any mistakes in this post.

Thanks, Alex.

[JohnParis]

"Tickled pale" is not an expression I have heard in English.

When a person is tickled, they generally experience an increase in heart rate and movement. Often, this makes their face blush "pink". Furthermore, tickling is an affectionate action (watch a baby when she's tickled) that elicits feelings of joy and happiness, as you have mentioned.

[BobSmith]

Hello.

The dictionary says this idiom does means being very pleased or amused. - I'm tempted to suggest quote marks around the phrase, to denote when it starts and stops, but I think technically that is not correct with "says this ... means". Perhaps just italicizing it would help.
I wonder if it is because when you are tickled to pale (can I say that?),
you usually laugh and look very happy.

Also, I would be grateful to you if you would correct my any mistakes in this post.

- I would include "Also" or "Additionally" here to denote that this is an additional request, unrelated to the question at hand.
- "my" is fine here, but to me is suggests there definitely are mistakes, whereas "any" doesn't.

Thanks, Alex.

[not a teacher]