thanks for the reply, i also get the blurriness and cant focus on things too close to my eyes but the double vision was sudden, without warning and shortlasting.i am not sure its connected to TOS or not.I looked at the chart you linked and have almost all the symptoms but had not heard of TOS until a couple of days ago. up to now i have been seen by a neurologist? and have had an MRI (still waiting for results)but i think they have been looking at the possibility of MS. now that i have read up om TOS i am convinced that is what is wrong, its only the double vision episode that i cant seem to put down to TOS. is it also normal to get a feeling of sunburn/itchyness/pain/redness of the skin on what i think is my clavicle?