Im sorry to hear about your situation. Well you can have withdrawal symptoms if you stop taking anti anxiety meds for a day or two HOWEVER they disappear as soon as you start using them again. As you said you have started using them again so it is unlikely to be due to the absence of medications a short while back. Now it is possible that you could have another problem which is causing these feelings of shakiness as well as shortness of breath.
One thing which could cause this would be acid reflux which can cause shortness of breath, burning chest pain, metalic taste in the mouth along with coughing. This would be easily diagnosed on a clinical examination and history and then treated with simple lifestyle modifications and OTC drugs like prilosec.
Another cause of this could be related to the heart, heart arrhythmias in which there is an irregular heart beat which can cause shortness of breath and even chest pain along with sweating etc. This can be diagnosed with a EKG, echoardiography and if needed a 24 hour holter monitor.
Lastly this could be worsening of your anxiety and it is possible that you could need an increase of the dosage of the drugs which you are on.
i would suggest that you contact your doctor and have him look into these possibilities. Try using OTC prilosec once 2 hours before bedtime and see if that helps (provided you have symptoms consistent with acid reflux)
Do you have any more questions?
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