Could it be that the excitement of this great sex is causing you to hyperventilate a little. That would give you the symptoms you describe.

Also, the shakiness afterwards could be attributed to your muscles being physically exhausted after the exhertion of sex, and your worrying about it may be contributing.

Just a thought - I'm not a doctor, so as everyone's already said, if it persists, see your GP.

Hopefully it's nothing - if so, yay for you and the up turn in your sex life!!

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