Help!!!!! my photos have gone

can anyone help, i was sick of photos from web pages i visit being stored on my phone, so after researching i installed a .nomedia file....however since doing this all my photos from my gallery arent there, i can see them in media explorer but there is nothing in the gallery!! can anyone help, any photos i take on my camera now are happily appearing in the gallery, just all my old ones arent there

its on my HTC One M8

thanks

andy