In January our 6.5-year-old Great Dane got bloat, underwent surgery, and recovered relatively well. Except, now he seems to be an anxious mess at night. He paces around the house, whines, barks at things that aren't there, etc. I took him back to the vet to make sure he's not in pain or nothing's wrong. She didn't have much to say except he looks great and give him time. Well in the process of giving him time, my husband and I are beyond sleep deprived. We can't go another night with him pacing until 4 am. Has anyone experienced this post surgery? AND would anyone recommend a calming/anxiety aid I could buy over the counter?

I'd appreciate any advice!