Hi, Kate - and thanks for the update on Matt.
I'm pleased to learn that things are improving and Matt is now out of the hospital and recovering. Although the Los Angeles area has it's charms (I lived there for 2 years, decades ago), I'm sure both you and Matt will be happy to return home to Dallas. Those CSF leaks are notoriously common and while the incisions in Matt's abdomen must have been uncomfortable, with the stitches out, he'll heal and, one hopes, this will all fade into a rapidly-retreating memory before long.
The 'out of it' feeling is common, post-op. I had it, too, and I had a complication-free surgery. I think it's a combination of anesthesia 'hangover', being in bed (inactivity) for days and, of course, the fact that our skull was opened up, (sometimes) our cerebellum moved (mine was) and the overall disassociation from normal life that being hospitalized and anesthetized can induce. My best advice, based on my experience, is that this will pass. Matt will need rest (lots of naps) but he should try to be as active, within reason, as possible. This will help re-acclimate him to normalcy, as long as he doesn't get too impatient and overdo it. I'm sure you'll be a big help to him, but don't try to 'mother' him as he 'll likely resent that. My loving wife was just a bit
too solicitous when I came home from the hospital, following my surgery. Frankly, I was anxious to get back to my normal life and resented - what I wrongly considered - her 'over-attentiveness'. Fortunately, I was able to return to normalcy fairly quickly and within a few months, my usual sanguine disposition returned. We're still married.
I think that you and Matt will also get through this just fine.
Jim