Hello there,
Today's social media and the increased crime rate against women have increased the anxiety which sometimes gets overwhelming when our loved ones step out. Feeling anxious to a limit is fine, but when u start loosing sleep , gets repetitive thoughts about a mishappenjng and these thoughts start interfering with your daily movement, these are the red flags which a person need to look out for. In such cases, counseling is recommended, and sometimes in extreme cases when condition goes unacknowledged for long then medication are also needed in such cases.
Next Steps
my suggestion is to go for few counselling sessions not only for ur own mental health but also to maintain the healthy relation with ur wife. you may also benefit from more specific approach like CBT.
Health Tips
practice relaxation technique like deep breathing and squeeze technique to get anxiety and panic in Check and for better control over ur emotional state. please remember you can change only those things on which u have control...situations beyond ur control getting anxious on them will only burn u out. best of luck and hope you get help soon.