Aerodyamic said:
You are not alone though for while I don't get the itching feel from watches I too short them out as well. Electromagnetic cards also die on me quite quickly which is why I don't carry them near my person, not like I need bank access while I am at work or sitting at my computer while at home. The reusable stuff, such a hotel key cards, can burn out in less then a few hours if I have it in my pocket but they just reprint them anyway so no harm there.
In any case it isn't anything to be worried about as it is just a higher then average electromagnetic field being generated by your body. Your body, having generated it, should be used to it and won't just suddenly go into arrest over this higher conductivity. There are a few down sides, of course, but I don't think your going to be dancing in a thunder storm any time soon or the other ridiculous things you would need to do to raise your chances of becoming a human capacitor.
Also most devices won't be affected by it, the field is only generated close to the body and has only a limited range, so your computer and the likes should be alright for the most part. The worse you face is shortened life span of components as your presence makes them work a bit hotter... but I consider it a complement myself. Buy them under warranty so if they break due to electromagnetic interference you can send it in to be replaced.
Fear not your field, be proud of the fact you are a walking EMP!