Should I reach out to my neighbor?

Someone told me that he saw my neighbor and she didn’t look to be in good health. He said it looked like she maybe had a stroke. It occurred to me that i haven’t been seeing her around, taking her daily walks nor has she been posting her photos in the local Facebook group.

Today I was outside and I saw her walking by and it did look like her left arm wasn’t swinging, it was just hanging there, with her hand curled up and she was walking with effort. By the time I saw her, she was past my house, so to get her attention would have been awkward.

Should I reach out to her and ask if she’s ok, or if she needs anything, or should I wait to see her in the street?