it would be best if you could decrease the dose over the next couple days ;if you have bouts of pain you can treat it with motrin or aleve; treat insomnia with benedryl &diahrrea with immodium.....all otc
my mil took it after surgery for a couple weeks and when she stopped she just thought she had the flu, I suspect it was low level withdrawals. You shouldn't feel too bad since you haven't been on it long term. I'd get some immodium and have it ready just in case and other than that you may feel fluish for a few days.
You might feel strange for a few days and not sleep well, then you'll be fine.