Hi Karin,
I'm going to wait. It's annoying but I think the best course of action
is to wait and see if the issue resolves itself within the next 24 to
72 hours.
Back in February when I migrated my feeds from Feedburner to Google,
my subscriber counts dropped 90% overnight. I was so angry and upset,
especially when initially there wasn't any clear info forthcoming from
Google about whether those subscribers were gone temporarily or
permanently. It took about three to five days for my subscriber counts
to return to normal across my various feeds. Hopefully it won't take
that long this time. Timing of this just really stinks for me since I
have doing a promotional push of my podcasts that began yesterday and
now it seems like I'm not going to have any stats to see how many
downloads/new subscribers my podcasts have gotten as a result.
At least we now know that we're not alone and that this problem is
affecting others. Hang in there. :)