I'm sure you're right - I don't recall any kind of bang or trauma but like you say, it's easily done on your toes. Just found it odd that it hasn't moved for over 2 months. I will update on here once I've had the appointment though. 
Sorry to hear you're going through that stress and uncertainty. Good that you've got the quick referral though (although I'm sure it will feel like forever while you wait!). Let us know how you get on - will be keeping everything crossed for you. 

I managed to speak with doctor this Monday and got a referral to see dermatologist on Wednesday - he didn't seem overly concerned about it being a melanoma but is booking me in for a nail removal and biopsy just to be on the safe side. So now I'm waiting for an appointment to come through, although they weren't able to give any indication on time frame, so I have no idea if it will be a matter of days, weeks or months...? The idea of having my toenail removed is pretty grim but I'm hoping it will be sooner rather than later! 
 

Have you had your appointment come through yet?

No one seems to be interacting with my post but figured I'd post updates anyway in case anyone comes across it in the future. 
 

I spoke to my GP last Monday, who referred me to dermatologist who I saw on that Wednesday. I then had nail removal and biopsy this Wednesday. The actual procedure went well - the anaesthetic injections felt like any kind of injection, so no major pain there. The toe was 100% numb after that and I didn't feel a thing during the procedure. I made a point of looking away but I did have a bit of a sweaty, nauseous few minutes just knowing what they were doing 2 stitches and the a dressing applied and was then free to go - all in less than an hour. Told to keep foot elevated and dressing on until Saturday, when I can then soak it off. Anaesthetic lasted longer than I expected (about 7-8 hours)..... and then the pain!!! It was far worse than I expected and paracetamol alone definitely didn't help, so have been using co-codamol. Still very painful today and I definitely know when painkillers are wearing off! Better than yesterday though, so hopefully will sleep better tonight and improve more tomorrow. Not sure if this is normal or if I just have a rubbish pain threshold ‍♀️
Now to wait the 3-4 weeks for results...

Thanks for the update. Hope the pain dies down quickly and the results bring you good news. Good luck and please let us know how you get on,

Angie (Stage 3 superficial spreading melanoma patient since 2009)

Thanks Angie. 
Did you go through the same biopsy process before you were diagnosed? 

Mine wasn't subungual but was a mole on my leg (superficial spreading). The biopsy process is the same though, except that subungual necessitates the nail removing to access the mark/mole. If the results are positive for melanoma you will need further surgery which is the same as for all melanoma. This is a Wide Local Excision where further tissue is removed to ensure clear margins. Unfortunately with subungual being on a toe or finger, there isn't a lot of tissue to remove so it sometimes means the tip of the toe or finger has to be removed. 

Thanks for the info - nice to have someone who's been through it tell you some of the more detailed info and facts  

I'm actually not too concerned about it being cancer - I know it's pretty unlikely given how rare it is and even if it does turn out to be a melanoma, I will have caught it early on. 
I just never expected this biopsy part to hurt so much and for this long! 

It will be more painful because of it's location I'm afraid. Hopefully it will settle down soon with lots of elevation!

What happened with your treatment - did you catch it early enough for the wide local exsition to get it all?