So basically I pulled up my grandads old carpet to discover the carpet underlay was still in tact but very moldy in some places I then notice behind the toilet the underlay is a bit away from the wall and I can see some black tiles underneath that look in tact, now I'm worried about asbestos fibres as god knows how long they have been down there, the house is quite old and I'm not sure how big or what condition all of them are in should I be concerned I mean they might not even contain asbestos my mum and grandad seem to think that when he moved in the house was surveyed and the tiles were checked but my anxiety is taking over and causing me to panic like I have just signed a death wish basically any advice is appreciated, I only lifted the carpet up and didn't touch the underlay and like I said I can barely even see the tiles can just sort of make out they are there.