I'm sure it's because of the time of year. try talking to your supervisor again. be very blunt about it. Hopefully the feelings will pass in a few weeks but you need to be comfortable at work in order to be productive and there is no reason they shouldn't be able to work something out with you, rearrange office, new office, turn desk. Also maybe explain to your coworker why you are jumpy and see if she can have sympathy for that during this time of year. ~hugs~