Sorry to be such a crybaby, but I'm just paralised since yesterday that I've done sth stupid and there is no way I can find an answer on the net. Dr Nagler doesn't seem to be answering either. So I must have a hearing loss, maybe total , above 11khz. I did a test on youtube yesterday using my tablet for this ( without headphones or earbuds) . They play tones starting from 125 hz up to 13000hz. Up to 700 I kept the recording very low cause the sound recorded seemd very loud . From 8khz on it seemed silent and from 10000 I could hardly hear anything so I turned the volume to the maximum and put the tablet to my ear to check if I really didn't hear a thing. I didn't. For me it was total silence. Just that right after I realised that the tablet played the thing as loud as it did in the beginning, so probably very loud ( I have no way of measuring how loud it was ) , only I didn't hear it, but could any part of my ear feel influenced by this ? Have I done sth stupid ? Can a sound I cannot hear hurt my ears? I don't know how much sound my tablet can emit but if I read an ipod can play up to 115 (!) ? maybe so does my tablet. HEre is the recording :