Are these post-op symptoms normal?

My husband (65) had a hip replacement 3 weeks ago. He is sleeping around 20 hours a day (a good four more hours than usual), is constantly freezing, and has lost almost all of his rather large appetite. He is on several medications, including coumadin and oxycodone, as well as laxatives and stool softeners, lipitor, baby aspirin, and Tylenol Extra Strength as needed. He cannot seem to get comfortable in a chair, so he lies down and then, of course, falls asleep. He can’t seem to stay awake for more than an hour at a time. Are these normal reactions to this type of surgery? If so, how long do they usually last? I should mention that he is healing well, does his exercises once or twice a day on most days, and was given a good report by the PT, who is discharging him to outpatient care tomorrow.

The oxycodone probably makes him sleepy and might also be causing the constipation and lack of appetite. If he doesn’t need it any more he could switch to tylenol only which won’t make him so sleepy and his bowels may straighten out. Also, moving around more might help. At 3 weeks he should be up and around as much as possible. Coumadin (a blood thinner) can make one feel cold. He shouldn’t stop taking it (or the aspirin) until directed by the doctor. Sorry, I have no suggestion for getting comfortable in a chair. That sort of goes with the territory for awhile but it gets better as time goes on.
I’ve had both hips replaced in separate surgeries several months apart. I took oxycodone during my hospital stay but they gave me a different pain med (tylenol 3). That one has codeine in it and I didn’t like it. It caused a nauseated feeling & loss of appetite and change in taste of food so when I had my second hip done I refused that drug and took only OTC tylenol. Amazing difference – no loss of appetite or change in taste like I experienced when I was taking tylenol 3. I got along just fine on plain tylenol and tylenol PM at night to help me sleep. I had lots of trouble sleeping because I was asked to sleep on my back with an abduction cushion between my legs! for a month. I cheated and after a few days of that I switched to a fat bed pillow and worked to be able to roll over on my good side, propping my operated leg on the pillow.
(20 hours sleeping a day is A LOT; you say that this is 4 more hours than usual so my math says that his usual sleep time is 16 hours??? That’s a lot too.)

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