Depends on the person. But when I have a mixed episode and describe it as “despairing anxiety” it’s not the same as “depression with anxiety”. It’s much, much more… energetic and strangely internalized. Really, when I say “depression and anxiety on 17 cups of espresso”, I’m not kidding. I have literally begged to get knocked unconcious to get relief from the incredible energy.
In a mixed episode, in my experience, there is incredible distress about the amount of energy you have coursing through you. I often feel like I have an impossibly vast hurricane somehow condensed into my cranium – and that just can’t be! It’s also difficult for me to talk because I talk so fast that people can’t understand my words, and often my thoughts are coming SO FAST that my mouth can’t keep up. So my sentences cut each other off mid-stream and my words come out in the wrong order.
“I went to the store. I bought some cat food. Then I did laundry.” will come out as “I went dry-laun dry-laun cat food.”
It’s like taking too much speed while riding on a rollercoaster after your best friend has died. A remarkable free-fall that is so BIG words fail to describe it.
As Q.N. said that’s sounds more obsessive.
Hypomanic or manic, it can be hard to sit still long enough to settle down for one task, even if I’m fixated on it. When I’m hypomanic, you practically have to tie me to my chair. I will probably do a minimum of three different tasks all at the same time (oh, I get a helluva lot done, I tell ya), and I will stand up, sit down, stand up, sit down as I do it. I used to wander around a lot. Work really fast and intently for 10 minutes, wander the building for five. Sing to myself as I’m working or talk in cartoon voices making up complex narratives like I’m scripting an episode of the Muppets. It’s really hard to get me to shut up.
Oh, I can work for days straight too with no food or sleep, but I don’t think I could focus on one thing for more than five minutes.
Also, as Q.N. pointed out. A lot of disorders are comorbid. Particularly those that affect the same part of the brain. For example OCD and Tourettes often show up together in the same individual.