I'm seeing GP anyway on Friday, and she happens to be a skin specialist, so will definitely show her, but wondering in meantime....
I thought it was a spot of light brown felt pen, tbh, as was colouring with dds last night. But definitely not, tried scrubbing off
and is still there.
Not raised, fairly regular, light/orangey brown, very similar to sun spots which have come up over the years on my face/hands - but its on the palm, at base of thumb 
Any reassuring noises, please?