Game Freezing and Patch Question...?

I've had this game for years and this is the first time this has happened but my game just froze out of no where. My sims won't move and the time stand stills but I can still click on things it just won't do anything. What's up with this? I have univ,open,night, and seasons installed.

Another question sometimes my sim will be fishing when i make her go do something else and she takes the fishing pole with her and just carries it around lol i have to click on build mode and then back to live mode for it to go away. It's just kind of annoying how can I make that go away?

Now for the Patch Question...
I know this might be obvious to others but I'm on my slow pills today so help me out.
I recently cleaned up my computer and had to reinstall the game and all the expansion packs but I never downloaded any of the patches that come with them. I'm downloading the Seasons Patch right now but do I need to download each expansion pack patch to accommodate their bugs? Or will just the latest version be sufficient?