Fasting after Cardio

Hello IF folks. First, thanks to this subreddit for existing and being such a positive and encouraging place otherwise I would have never started or kept going. I started almost a month ago.

I fast 16:8 from noon to 8pm. I do my cardio (elliptical) daily around 7pm or later, sometimes as late as 10pm. On days where I work out (weight-lifting), I ingest some kind of protein an hour or two prior to my workout and within half an hour after, wait for it to digest, then get in some cardio.

Because of the timing of my cardio, I often eat nothing an just drink water after in the mindset of "so begins another fast." I am having trouble finding info regarding if this is wrong or not. Does doing cardio followed immediately by no eating and just drinking water until noon the following day ok?