Hi...sorry this has happened ...it is not fun to feel these familiar, yet uncomfortable feelings after so long.:/
I think this is especially challenging because this is a trigger for you.
You have had this type of symptom/concern before...so you know it will be okay...
...but that doesn't always relieve the worry, I know.
Use your positive mantras and relaxation skills to get you through this time.
I am sure it will pass soon.