Disk Space Disappearing After Today's Updates - Please help

Question

Hi there everyone. I'm having major problems with my mac pro today, and for the first time, I cannot fix it. Please help me. I will try to explain what happenned. Like most, I was very excited about the release of ios 5 today. I downloaded the Lion 10.7.2 update, the ios 5 updates, iTunes and the iPhoto update. I installed of these without problems and then I enabled iCloud. I then decided to first update and restore my iPad 1 to ios 5. This worked perfectly fine and my computer was running fine. Then, I decided to update my iPhone 4 next. This is when I started running into problems. I updated it and then went to restore it from a a backup. This did not work, I got an error message that told me it was unable to restore the phone becasue it was unable to create backup.
So, I then checked the disk space for the main Lion drive and it was at zero. I thought, well I was sure I had at least a few gigs, but maybe I used them. So i deleted enough files to create 5GB of free disk space. I then tried to run it again, and I watched as my disk space slowly went down to zero again. I thought maybe it needed even more space than that. So I rebooted the machine and yet my disk space did not reappear. I had about 200mb when I rebooted. Then i noticed it was randomly fluctuating and went down to zero again. I then deleted another 3gb of files and created more disk space to try again. The same thing happenned again. I have now rebooted the machine again. When it first rebooted it had 500mb of disk space, it then fluctuated and went down to zero again. It is going between 67mb and zero every minute or two, and then goes up to 400MB, then reduces down to zero again. What is happenning? I have not opened any applications except for safari right now. Do we think there is a problem with my virtual memory or disk all of a sudden? It seems strange this happenned today. it must be related to one of the updates? I thought it might be icloud. So I have diabled that completely and the fluctuations have not stopped.
I would really appreciate any help anyone can give. I cannot think what the problem is. I cannot even run Techtool to check anything because nothing is working with no space for memory. Every time I delete files it goes down to zero anyway.
Thank you very much

Answer 1

How much space is your Other using? You may be able to reduce.
How Do I Get Rid Of The “Other” Data Stored On My iPad Or iPhone?
http://tinyurl.com/85w6xwn
With an iOS device, the “Other” space in iTunes is used to store things like documents, settings, caches, and a few other important items. If you sync lots of documents to apps like GoodReader, DropCopy, or anything else that reads external files, your storage use can skyrocket. With iOS 5, you can see exactly which applications are taking up the most space. Just head to Settings > General > Usage, and tap the button labeled Show All Apps. The storage section will show you the app and how much storage space it is taking up. Tap on the app name to get a description of the additional storage space being used by the app’s documents and data. You can remove the storage-hogging application and all of its data directly from this screen, or manually remove the data by opening the app. Some applications, especially those designed by Apple, will allow you to remove stored data by swiping from left to right on the item to reveal a Delete button.
 Cheers, Tom