It is very unlikely that your GBS has recurred but it is very important to seek medical advice for these symptoms. The most likely explanatrion is that you have a nonspecific recurrence of residual effects of the original episode which will subside as you recover from your recent COVID infection. A much less likely explanation is that you have the related condition, CIDP, that can sometimes closely resemble GBS at outset but go on to run a chronic or recurrent course. Let me reiterate, though, that it is important to get checked medically to ensure that nothing more ominous is going on.