"getting unto difficulties while swimming"

[michael45]

how can a "strong " swimmer who can swim the English Channel or from Cuba to America "get into difficulties " while swimming

Rip tides, has a bang on the head, water too cold?

Without context it is hard to give an answer.
Swamped by freak wave?
Arms or legs tangled in weed or fishing net.
Rip tides.
Struck by a boat, very hard to see swimmers in the sea.
Heart attack or stroke.
Ate something that didn't agree with them.
Drunk?
Dived into shallow water and hit head
You tell us

lost too much weight on swimming world??

Exhaustion, succumbing to cold, dehydration, big waves, jellyfish stings. Loads of reasons that could happen.

As per all the answers above, but am wondering what this has to do with Slimming World ?

Why do you ask?
And what has Slimming World got to do with it?

Easily.

Swimming World?

Perhaps OP thought it was 'Swimming' World?

Maybe they lost too much weight so weren't as buoyant as usual 😅

How many Syns had they had, and was it a Green or Red day?

Cramp, hyperventilation, squits, cold shock etc

Slimming World/Swimming World, easy mistake to make 😆

😀