K.,
I hope you are feeling better now...if not, or for future reference...these therapy worksheets can be really effective in working through troublesome thoughts!
Self Help Printable Work Book for OCD and Intrusive Thoughts
http://www.moodjuice.scot.nhs.uk/obsessioncompulsion.asp
Therapy Work Sheets:
http://www.get.gg/freedownloads2.htm
S.C.