Subungual Melanoma

Can't help myself worrying about a brown mark I have developed under one of my big toe nails. I first noticed it over 2 months ago and although it has grown slightly, it hasn't moved up the nail with growth. In the last few weeks I've started getting the odd pain here and there in my actual toe (not the nail itself). I have booked a gp appointment but couldn't get one until the week after next and now driving myself mad browsing the internet like some sort of self-inflicted torture :cry: :laugh:

was hoping to upload a photo to see if anyone has had similar but doesn't look like you can add photos. It's not a straight line but more of a random uneven 'splodge'