Duck behaving weird after laying a soft egg

[Daisy and Daffy]

Hi. My duck started pumping her tail a bit after laying this weird egg, and she’s breathing slightly weird too. The egg she laid this morning was soft shelled. This started after she laid the bad egg, and the weird breathing lessened after 10 or so minutes and the tail pumping is less too. She’s been a bit subdued since this started, not too lively but perked up once I have her 10 or so blueberries (her favorite food). She’s eating a bit but not as much as she usually does at night when I bring new feed out. Should I be concerned?
One video is of tail pumping, other is of the weird breathing. You may need to turn up volume for the breathing one
https://drive.google.com/file/d/1yzVnMWGPsqPNE4xOVYprASorCVz290_N/view?usp=drivesdk

https://drive.google.com/file/d/1VoajN-ACWNfLpMLiTrQh54DzVCzCASMi/view?usp=drivesdk

 

[Miss Lydia]

On the video it's saying still processing try later.

How old is this duck? Is she just starting to lay? Not uncommon for them to lay soft shells when first starting to lay and they can be harder to lay than normal eggs.
Are you providing oyster shells? what feed are you using? For any of us that have egg layers we should have on hand Liquid Calcium Gluconate [TSC} It was rec by a vet for a member whose duck was egg bound and many of us have used it with success to get our duck to pass an egg she was having trouble laying.

 

[Daisy and Daffy]

She’s a year and 5 months and she’s laid an egg every day consistently since late august last year. She has free choice of oyster shell but I don’t have any calcium gluconate. She seems a bit better today though.

 

[Miss Lydia]

Good to hear she seems better. Anyone with egg layers should have Calcium Gluconate on hand that way if one has a problem laying we are ready to help. {TSC} has it.

 

[Daisy and Daffy]

I will go out and get some. Are there any threads on how to administer it?

 

[Miss Lydia]

https://www.backyardchickens.com/th...bound-ducks-preliminary.959537/#post-14940303 you can give it over a yummy treat or by mouth

https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/