Delta 3200 does have high base fog even when it's relatively fresh.... but oddly enough, prints much better than it should. OP, are you comparing your aged film with a brand new film when you say "crazy fog"?? Have you tried printing from it or are you just looking at it on a light table? You may be (as I was) pleasantly surprised....

As far as dev time goes, I usually shoot it at ISO x and develop it using time for ISO 2x (meaning use the time for rating it twice as much) Otherwise, on top of high base fog, I'd end up with thin negative.

and welcome to APUG!