It is not uncommon for an illness to be a trigger for anxiety. We have many members here with similar experiences...so know that you are not alone.
I am sorry to hear of this bad attack...and I do wish you well, and hope you are feeling better all around soon!
Please see our Resources at the top of the main forum page here for great self help material. Practicing the suggested exercises daily will make a big difference in how you feel.
Keep posting with us as well if you find it helpful. We understand, care and support is key.
"Courage is not the abscence of fear, it is feeling afraid and doing it anyway!"
"Worrying does not empty tomorrow of its troubles...it empties today of its strength."
Corrie Ten Boom
Panic Syndrome recovery due to CBT