Thanks for the response....well I thought it was just on the front of clothes and so blamed my belt for a few years, bought some new belts, gave up wearing belts etc, to no avail. The most recent top I know hasn't ever been worn with a belt. Also I had spilled food on this top before washing it so had inspected it closely before and after washing it which is why I noticed the new holes straight away. The 2 holes looked puckered like they had been tugged by something. There were no bra's in that wash. Also I've been noticing more and more holes in other clothes so they aren't just at the front. E.g. on the sleeve and back of cardigans, random places on duvet covers
I've ordered some laundry bags so I'm going to see if using them will save my clothes.
I've read quite a few posts now and have been over the drum with some tights over my hand but haven't found any sharp parts. I think nearly every item of clothing I own now has at least one hole in it. I'm currently wearing a top with a cardi over it, the cardi has one hole in it (on the front, but the front hangs by my sides, there are no buttons or zips etc to do the cardi up) and the top has 2 both lower front. My trousers don't have any holes, but I wonder if that's because the material is thicker. I'll have to buy some cheap t-shirts and do the test of washing it and never wearing it.