[sad] It's a series 3 apple watch, you're supposed to be able to wear it for swimming, but afterwards, the screen went a bit funny (like non responsive when I was touching it) and then it went completely flat and won't charge [sad] When I press the power button it shows up with a red lightening bolt and charging cable, but nothing happens when I put it on the charger! Is there anything I can do? I love my watch and I'll be devastated if it's knackered [sad]