i would ask to see a copy of her results, any one can say they got tested. I would also advise if she says she doesn't have a copy she can ask for a copy from her doctors office. The sensation could be anything, could be from the anxiety or something else.
I would suggest your own testing after the time periods. see below. But if you do get to see her results then that should help with your anxiety of this.
Chlamydia, gono- 7 days post
HSV- 3 months
HIV- 3 months
Syphilis - 4-6 weeks
She said she got tested a week ago and everything was fine. Also I have had a fickering/tickling n the tip of my penis and sort of the bottom of my gential area...its rare most of the time and comes and goes. I think its something with a nerve and irritation but could it be something else?
I can't tell you if you should be worried or not. I can just tell you that a broken condom does pose a risk for STD's and HIV if the person had anything.
Ask your friend to test and this should help any worry you may have.