I just saw the warning and updated to .4.8, my balance is showing as zero but im behind on the blocks. I am super worried, my face is flush and I am scared! How can I catch up or see if anything happened? This would be really devastating to me if I got exploited with the fake client

Easiest way might be to check the hash per the instructions on page 1 of this forum, with the .zip file you downloaded and used.
There is a chance you installed the bad client and still retain your balance, some people have reported having the bad client and still
being able to transfer out into a new good client.
good luck, sorry to hear, and I know the feeling.
btw. shouldn't he just close his client and check the hash before waiting for the blocks to load?
*edit
this... easiest way to see if anything has been "transferred out" without your approval.
And then follow the instructions of the first page, open that hash checked new client, transfer what you hopefully still retain
into a new fresh account.
I just saw the warning and updated to .4.8, my balance is showing as zero but im behind on the blocks. I am super worried, my face is flush and I am scared! How can I catch up or see if anything happened? This would be really devastating to me if I got exploited with the fake client

Just check your account below:
http://87.230.14.1/nxt/nxt.cgi?action=1