You can definitely have more than one manic risky behavior. Some people have one or two, and other people have a ton of them. They can change over time, too, because people change over time. It depends on the person.

This is just my opinion, but... if you have never had any problems with spending behavior while you're manic, then I don't understand why your husband is taking over your SSDI. "Today it could men, tomorrow it could be spending" doesn't sound like very good reasoning. I mean, yeah, it could be spending, but there doesn't appear to be much evidence supporting that conclusion.