AP - I fear I see a hard reset in your future. It's that sort of nonsense that made me eventually give up on Garmin and switch to TomTom.
Anyone who happens to be in Paris on 27th September and fancies seeing what it's like to walk down the middle of the Champs Élysées without having to run a marathon afterwards - Paris is being turned into a pedestrian zone for the day .
Training is finally starting to feel like it's paying off. I'm on my fifth week - for the first four it felt like I was getting progressively less fit and more tired, but it's starting to feel a bit better. Plan on hold this weekend for a few days of trail running in the Lake District, which should be fun.
I'm aiming for sub 4, possibly sub 3:55, ideally 3:53 which would get me to Boston. My PB, set 2 years ago, is 3:49, so it should be doable, but after two years of focusing on ultra races it feels like a bit of a stretch to go that fast. We'll see.
The colour of your pee is a better indication of hydration than the dryness of your throat. What colour is it at the end of (or during) a long run? If it takes hours for you to go, and/or it's brown or dark yellow, you're dehydrated. If it's colourless or very pale yellow you may be over hydrating (more dangerous, because of the salt issue Seren mentioned). The colour to aim for is 'pale straw'. Check it out every time you do a long run and you should be able to gauge it quite quickly.
Unless you've been eating beetroot or taking multivitamins, which is a whole different story.