I have to strongly disagree with Kathy. What you may have is a form of anxiety not ptsd. You may find tremendous relief through coping techniques taught during cognitive behavioral therapy. The techniques are easy to learn and useful immediately.
The best reference may be from your primary care physician. Good CBTs often have long waiting lists. A referral from your doctor will bump you higher on the list. There are therapists who specialize in anxiety and panic treatments but any good CBT (cognitive behavioral therapist) can help.
There are also short acting drugs that will help if you have anxiety attacks which interfere with your ability to function. An anxiety attack may feel like an asthma or heart attack. Some people have severe chest pain and feel they cannot breathe.
PTSD is much more severe and should be treated by a PTSD specialist. PTSD interferes in your daily ability to function and has many physical side effects. I have had it for 40 years and it is horrible. I pray that you simply have anxiety and not PTSD.