thanks to you both jo and richard!.

im still just getting confused about all these symptoms as seeing my most recent EMG came back as normal. The one i had 2 years ago (the atrophy was noticed pretty much 3 years ago now) said there was some indication of interference at some point!....i was confused about all that and didnt ask for any more clarification - had never even heard of TOS back then either!

so from what i understand, the interference with the nerves can be on and off with TOS (in some people there is no permanent entrapment?) but on/off interference can cause the muscles not to function properly and eventually cause muscle wastage?

my little finger has also started becoming a little swollen looking, this seems to be staying with me and not going for the last couple of months and im quite worried about it now! - this is vascular i believe, but again it depends which website i read!