The cat probably enjoyed the attention. The constipation part is back. IT can lock you down big time. Puts your peristalsis to sleep.
I work with hospice and spend much of my time with people taking high dose of morphine. The best laxative we have found for dealing with constipation from opiates is senna. One needs to regulate their does themselves. For example an average dose for a normal person is one or two per day. For people on opiates the dose can go much higher. I have one patient who takes 12 per day. It all depends on your body. Start low and work up to see where you are at. Use it daily.
The second thing to try is bisacodyl suppositories. They are available over the counter or in enema form from Fleets. The bisacodyl gets things moving. It works very well but can cause cramps for some.
The main thing is don't let it go for too long. If one skips a day without a BM attack the problem on the second usually with the bisacodyl. Don't wait the problem will just get worse.
I am sure others in the medical field will have suggestion. This is just been my experience from the people I have worked with and have found it very successful