Hello ladies.
Scampidoodle - As far as I know I have never had COVID but your description of physical anxiety with a fluttering heart and jittery stomach feelings certainly match my general menopause experience.
Many ladies on MM report the same and my trusty meno book also notes these sensations as hormonal.
It is highly likely that COVID is contributing to your symptoms but what you have described sounds very menopausal to me. Hopefully when the virus leaves your system your hormones will settle down and these very unpleasant sensations wil diminish.
Wishing you well and take care.
K.