The key word is frantic movement, not just lots of movement. However, if your LO is moving significantly more than usual, or less, you should always get it checked out to be on the safe side.
Too much movement can be a sign of distress but just because there is a lot of movement does not mean distress. If you are worried about something in particular talk to your doctor.
Same here my baby is very active. And I love it. It reassures me his healthy and happy
Your baby may just be very active and healthy.
Never heard that saying.... My obgyn always tell me as long as baby is active that's a good sign of a healthy baby. Now no movement at all, that's when I would start to worry. The more my baby girl moves the more reassured I am that she's doing just fine.