Hi, I'd like to help you with your question.
It does sound like your husband is suffering from anxiety and panic. It also sounds like he feels embarrassed by what is going on. That is very normal, especially for men, who do not want to appear to be weak in any way and not capable.
What he needs to know is that anxiety is one of the most common mental health issues. And the treatment is usually very successful. There are many resources out there for him, including books, self help programs, and therapy. He can also take medications to take the edge off while he seeks treatment.
The first step should be an appointment with his regular doctor. Other possible physical diagnosis should be ruled out first. If he is cleared physically, then the doctor may be able to prescribe a mild anti anxiety medication. This is not necessary unless he feels he cannot function without it.
The most effective therapy with anxiety and panic is Cognitive Behavioral Therapy (CBT). This is a short term therapy that has proven to help resolve anxiety quickly. He can also try the Mid West Center for Stress and Anxiety. Lucinda Bassett, one of the founders, has several books and an anxiety program on DVD/CD that is very helpful. There are also several great books including The Anxiety and Phobia Workbook by Edmund Bourne, any Claire Weekes book including Hope and Help for your Nerves, and
When Panic Attacks: The New, Drug-Free Anxiety Therapy That Can Change Your Life by David D. Burns. These are just a few resources available out there. You can find these at Amazon.com or your local library may have them available.
Let him know that treatment is very helpful and that he is not alone with this. It is important that he have hope that he will recover.
I hope this has helped you,