Why doesn't the phone compass work so well on a ship?

I once tried the compass function on my phone (Gigaset GS5) on a cruise ship and noticed significant deviations from what the ship's WiFi was reporting. I then experimented a bit and noticed that my phone's compass reacted to the thin metal bars around the windows, even though they're just metal and not magnets… How…

Should I take a walker with me on my trip tomorrow because I'm afraid of slippery surfaces (see text)?

Tomorrow I'm meeting up with an acquaintance, a former work colleague. She actually knows that I have a walker because I use it sometimes. To explain: I have arthritis in both knees, but that's not the reason I need a walking aid. To be honest, I have trouble walking, and that's the only reason I…

Is this some kind of (mental) disorder and if so, which one?

I often get so distracted by small noises that it drives me completely crazy. I always feel this urge to just run away or scream or something. Additionally, I can't listen properly in stressful situations. I can hear the person talking to me, but I can't really understand what they're saying. My brain can't absorb…