I understand what you are saying, but have a hard time visualizing what's happening since you say it's a Miltionopsis. If it was a Phal, I'd guess it was a keiki growing off a node on a spike, which is common. But Miltionopsis (and Oncidiums in general) don't do that. Spikes just yellow and die, and any new growth comes from the base. Occasionally there will be a weird growth on top of a pseudobulb that looks like it could be a new plant.
Photos are really necessary to understand what's ahppening. If you still can't add photos via the forum, you can also try this:
ImgBB — Upload Image — Free Image Hosting
Simply upload a photo, then paste the bbcode it gives you into your post.