Does this look like rot?

[MothLover]

Because I'm so new to orchids, I don't really know what to look for as far as basal rot goes. I got kinda scared when my Phalaenopsis lost two leaves. They just kinda shriveled up and fell off. I know that Phals lose their leaves sometimes when new ones grow, I've just never experienced it.

The plant itself is fine, the other leaves are still healthy. It;s in bloom, and the flowers show no signs of stress. No wilting has occurred, and the plant has great roots. I just wanted to be sure that it's not rot, and if it is, I want to catch it as quick as I can.

Thanks