I had hearing aids last year as I was diagnosed with mild to moderate hearing loss. I had already realised that! I know, because I was told that I should persevere wearing them and indeed I did for weeks , waiting for my ears to adjust but it became unbearable even when I turned them down and I ended up with headaches. I could hear every movement of my clothes or rustle of paper and the noise of the fridge in the kitchen, the tap running in the bathroom or my DS's radio playing upstairs, not to mention the creaking of floorboards when he moved. This all drowned out the sound of the programme I was trying to hear on TV or radio. The background music which is usually a drone or plinky plonk noise also becomes more audible and irritating. As for when DGC are arguing or screaming .... no way!
I wear them for concerts or plays (usually school ones) and again cannot hear for coughing, whispering shifting chairs or babies crying.
I am currently trying again particularly for TV programmes that have no sub titles but again more of the above!