It's a totally innocent, considerate question. Relax.
Personally, I love this question, mostly because I'm terrible at small talk, and I feel like I don't talk enough to my co-workers, so that little "how are you feeling?" will 9 times out of 10 spark a longer conversation, and it just feels good to talk to people here after working from home for so long and only talking with my family. I'm an introvert by nature, so it's been a great excuse for some extra little socializing lately.