Charging / PPM / Sync problems

Hi,

I've having multiple problems with my Fenix 5. It's less than 3 years old and in perfect condition.

- Charging problem : When I want to charge the watch very often it's getting hot and not really charging, for example 10% in 5 hours. Sometimes it works normaly. I tried using a regular charger (5W 1A) and from the computer too : same problem.

- The heart rate is really not reliable anymore. I had a 3 hours walk yesterday and after less than 2 hours the heart rate went from 110 to about 55 ppm with no reason. So I have more than 1 hour of false ppm value. I did not slow down my walk in any way.

- My Fenix 5 is not regognized by my computer anymore. I tried on 2 machines, Garmin Connect up to date, same problem.

That's a lot of problems for a watch that is less than 3 years old (and I'm taking good care of it)... and paid 600 Euros...

If anyone can help, that would be nice.

Thanks,

Hugo