So I've been riding for about 5 months on my current bike. Besides some occasional saddle pains, I haven't had any major issues with the fit. My elbows kind of get some pain but I just stretch it out and it goes away (idk if that's normal too).

Recently after my rides, I've noticed my fingers get really numb. Not my hands but my fingers. And only my left ones. I got a new wheelset but I do not see how that can affect anything. Once I get off my bike, I can't seem to close my fingers. I can close my hand into a fist but I can't move my fingers together. I can wiggle them back and forth, but apparently they don't like touching each other. This has happened during the past 4 rides. It takes about two days without riding for it to go away.

Any ideas as to what the problem is? Do I need to get refitted? I haven't ridden in a while due to the weather, so no recent reports.