any sort of decreased circulation can cause tingling. you may have had underlying cardiovascular/pulmonary issues for a long time, and are just now noticing it because covid.
I don't though. I went and got everything checked out after it started but before my insurance ran out (I moved countries and lost my work coverage). There was nothing on any of the tests that were run. And I've no other symptoms of anything really.
sure, it's hard to know without detailed investigation. i mention it only because i've personally had some underlying issues surface due to being unable to play basketball (my primary physical fitness activity) for over a year during covid.