Try the Bach Flower Remedy Red Chestnut , available online or an independent health store( Boots and H n B only sell more usual remedies). Red Chestnut is for ' over concern for the welfare of others' . Won't interfere with any other medication, works as a vibrational medicine. It would be excellent for what you are experiencing, but I agree with others, if this sort of feeling keeps cropping up, see your GP. Older friends, and my sister who is 10 years older than me tell me that you get more anxious about things as you get older. My bete noir is Friday afternoon traffic... drivers with ' weekend/ hot date/ get home' looks emblazoned across their eyes. I feel uncomfortable driving, I have been tooted or cut up so many times, once in a side road as I came up to a junction someone overtook me and screeched in front.... It was a 30 mph limit, menaces! ( Took Rock Rose for terror after...!!)