In my water glass, only the one I use, also happens in other houses where I am staying. Only with me. 3 inches of black and grey mould spots, so many can hardly see the glass.
So it sounds like the mould spores are coming from you if it is happening an any glass you use. That is very strange and warrants a discussion with your GP. Can you arrange a phone appointment and perhaps send him/her a photo via e-mail?
Bicarb of soda is a good natural anti-fungal so it might be worth gargling with a glass of warm water with a tsp of bicarb dissolved in it to see if that helps until you speak to your GP. Let us know how you get on.
There are no docs on here, that's why you should talk to one in person. I think it's a noticable symptom that you should talk to your GP about, even if it's just to ease your mind.
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